Foldex Cat vs Persian Cat. What are the differences between these two cat breeds? The history of the Foldex begins in 1992 in Quebec, Canada when they first started popping up on the scene. The breed was a big draw when they began appearing in cat shows due to their super cute looks. A lot of the subsequent development of the Foldex is credited to a breeder named Jean Barrette. The Foldex was officially granted full championship status by the Canadian Cat Association in 2010. The Persian is an old breed. To those who love this elegant cat, it will come as no surprise that the long-haired beauty originated in the cradle of civilization, Mesopotamia, which was later known as Persia and is now modern-day Iran. The breed's long hair was probably the result of a natural mutation, and its striking appearance attracted the attention of 17th-century Italian noble men and world traveler Pietro Della Valle, who is credited with bringing the first long-haired cats to Europe in 1626. The Foldex is a breed of cat that you'll see in almost every cat color available, and in patterns that include tabby and calico. When it comes to grooming, this will totally depend on whether your Foldex is a long or short-haired kitty. If you have a short-haired Foldex, brushing their coat once a week should suffice. But a long-haired Foldex will require more frequent brushing to help lessen the chances of hairballs and mats forming. Aim for every other day although the breed will happily take to daily brushing sessions. In terms of climate, the Foldex is generally an adaptable breed of cat. Although you should always make sure that there's enough shade and fresh water available during the hotter months. The Persian has a distinctive appearance, a large, round head, large, round eyes, a short nose, full cheeks, and small ears with rounded tips. The head is supported by a short, thick neck and a deceptively sturdy, muscular body, a type known as Kabi. A Persian's legs are short, thick, and strong with large, round, firm paws. The tail is short but proportional to the length of the cat's body. It's long all over the body and includes an immense rough around the neck, a deep frill between the front legs, long ear, and toe tufts, and a full brush or tail. Persians can come in different looks. Some, known as peak face persians, have an extremely flat face. Think twice about the breathing problems such a cat might have before deciding to get one. Doll face persians are said to have a more old-fashioned appearance, with a face that is not as flat as the show Persian or the peak face Persian. Persians of all stripes stand out for their infinite variety of coat colors and patterns. Imagine, if you will, seven solid color divisions, white, blue, black, red, cream, chocolate, and lilac, plus silver and golden division colors of chinchilla and shaded silver or golden blue chinchilla and blue shaded silver or golden. And then there are the shaded, smoke, tabby, talico, particolor and bicolor divisions. That's not counting the various pointed patterns of the Himalayan. Eye color is related to coat color. For instance, white persians have deep blue or brilliant copper eyes, other solid colored persians have brilliant copper eyes, silver and golden persians have green or blue green eyes, and so on. Hello. This video is sponsored by Beemix Pets. Are you looking for high-quality cat collars at an affordable cost? Check out, BeemixPets.com. Use coupon code KittenLife, to get 20% off. When it comes to the Foldex's personality, you'll struggle to come across a more loving and people-friendly cat breed. These are felines who absolutely love cuddle and snuggle sessions with the humans in their life. At times, you might become convinced you're actually hanging out with a teddy bear as you lounge together on the couch or the bed. It follows that the Foldex is a cat who adores being petted, which also means they bring a soothing presence to the household. Along with being adorable, the Foldex has a strong inquisitive streak, so make sure to provide smart interactive toys to keep the breed mentally stimulated, along with suitable cat furniture so they can explore and play at their own pace. These sweet felines are also exceptionally approachable, making them a great fit for big families or homes where there's a large amount of people always coming and going. The dignified and docile Persian is known for being quiet and sweet. She is an ornament to any home where she can enjoy sitting in a lap, surely her rightful place, being petted by those who are discerning enough to recognize her superior qualities, and playing house with kind children who will gently comb her hair, will her around in a baby buggy, then serve her tea at their parties. Persians are affectionate but discriminating. They reserve their attention for family members and those few guests whom they feel they can trust. Loud environments aren't a Persian style. They are sedate cats who prefer a serene home where little changes from day to day. With large, expressive eyes and a voice that has been described as soft, pleasant and musical, Persians let their simple needs be known, regular meals, a little playtime with a catnip mouse or feather teaser, and lots of love, which they return tenfold. This is one cat who is unlikely to climb up your curtains, jump on your kitchen counters, or perch on top of your refrigerator. She is perfectly happy to rule her domain from the floor or more accessible pieces of furniture. When you are at work or are busy around the house, the Persian is content to adorn a chair, sofa, or bed until you are free to admire her and give her the attention she willingly receives but never demands. As with all cats, it's important to keep up your foldx's regular veterinary checkups to detect any health concerns early. Your vet can help you develop a care routine that will keep your cat healthy. Beyond scheduling yearly wellness visits with your vet, you'll want to add a scratching post to your foldx's living environment. This can help promote healthy scratching and keep the cat's nails in good condition. While the foldx has a sweet and laid-back personality, it's also important to make sure that there is enough space for the breed to play and exercise, so consider adding a cat tree to your home. The most important thing to understand about caring for a Persian is the need for daily grooming. That long, beautiful coat doesn't stay clean and tangle free on its own. It must be gently but thoroughly combed and brushed every day, and regular bathing, at least once a month, is a good idea. Another factor to consider is the litter box issue. Litter may become lodged in a Persian's paws or coat. If the cat and the litter box aren't kept scrupulously clean, a Persian is more likely than most to just stop using the box. Excessive tearing can be a problem in this breed, so wipe the corners of the eyes clean daily to prevent under-eye stains from forming. Brush the teeth to prevent periodontal disease. Daily dental hygiene is best, but weekly brushing is better than nothing. It's a good idea to keep a Persian as an indoor-only cat. She's not a scrapper and would fare poorly against other cats, dogs, coyotes, and the other dangers that face cats who go outdoors. Nor is the Persian's coat made for shedding dirt, leaves and stickers. Letting a Persian outdoors just means that much more time spent grooming the cat. Persians who go outdoors also run the risk of being stolen by someone who would like to have such a beautiful cat without paying for it. The Fold X is a friendly feline who does very well with young children. Just be sure that early socialization takes place and boundaries are properly set on both sides, and supervise early interactions between kids and cats. When it comes to other household pets, the Fold X fares well with many domestic animals, including dogs. Always supervise early interactions between the new cat and existing pets. Ultimately, early socialization really pays off with this breed. Make sure to reward your Fold X for good behavior when you bring them home to your family. Persians aren't the best choice for a house full of boisterous children and dogs, but they have no objection to being the object of a gentle child's attentions or to rubbing along with a friendly dog who doesn't chase them or otherwise cause them anxiety. If you enjoyed this video, kindly press the like button. Also don't forget to subscribe with notifications on, so that you don't miss out on videos like this. Thank you for watching.


Chad, we've come to a completely desolate area that doesn't exist in real life. It is New Year's in Texas in a few minutes. We have a ton of fireworks and we have Hot Chubby and we have everyone else. We're probably not gonna end up lighting all of these because we got a lot of fireworks. What's your stream? What all we got first? It's midnight in one minute. It's fine. We're doing California time, except California's two hours away. So no, we're not. We're doing S-Man time. Okay, so we got this thing. This is called the Big Tex. It says, Wake the Neighbors. So we came here because there's no neighbors. So that's good. We have the smoke grenades, which we should probably actually save for content. We have the blockbuster. This is double triple four canister artillery shells. We have this thing. We have the American Hero Police. This is the Cornwood Edition. And this is the Big Tex. Pass the rest, get the best. Hell yeah, bro. Do we know what all these do? And how do we know if they're a sword? I actually don't know, but I know this is a sword. Do you want a sword fight while they're lit? I don't know. That's a good idea. I just pulled the fuse out of mine. All right. Haha! I said, wait, it might not, it might do that little second test. I'm Wimp. Okay, we're gonna try the other side of the sign. It's like a super sparkler. It's so good. I love that smell. This was hard. What we should try and do is we should try and have four at the same time.  If we get one, and then if we don't get the others, I'm consa... Here's what we're gonna do. We're all gonna, away from the fuse, we are all going to press the thing. And then together, I'll be like, okay, now. And then we're all gonna try and light it, okay? Okay, ready? Three, two, one, go. And then now, the triple. We have a triple in here. We have a single in there, a double in there, and then a four-inch canister in there. I'll try to light both of these. Three, two... That's a fan run! Here, do this one. Hey, here it is. Live, laugh, love. She thought it missiles battery, a hundred shots. This is the one you have to stick in the ground. For once you came, trust me, I'm a doctor. I thought I just died. There's every man for himself. That's the stupidest thing he's ever done. It's half of the big boys? I think we need to launch some of the big boys. Maybe we save the rest of them for this life. Yeah, I think so. Let's get these big boxes done. Let's do the American hero. Okay. Boys, 25 shots, 500 grams. Maximum legal capacity. Hey, why not do both of these things? We got a lot of crazy stuff planned for 2022. Make sure to follow everybody here, like always.  Where 6K follows away. 6K falls away from one million followers sub-a-thon. That's super cool. I'm very excited. It's going to be really good. Workout streams, cooking streams, everything. Once they get my attrition PC, it's going to be coming back. Best of the standard, chat. Best of the standard. That's what we're always doing. All right. Bye, everybody. Bye, chat.


Item number SCP-105, Object Class, Safe Special Containment Procedures SCP-105 is implanted with a tracking device and is currently housed at Site 17. SCP-105 is currently allowed Class 3 restricted socialization privileges with approved Site Personnel, granted based on continued good behavior and cooperation with Foundation Personnel. SCP-105's personal camera, designated SCP-105B, is contained in a locked safe deposit box at Site 19's high value item storage facility. Standard positive action defenses, explosive chemical, biological, and mimetic are to be in place at all times, while SCP-105B is within containment. SCP-105 and SCP-105B, or any other camera, are only to be allowed to come into contact with approval of the current managing researcher. Description SCP-105, formerly known as Iris Thompson, is a female human of European descent. Records indicate that SCP-105 was born in f*****g making her f*****g years old at the time of acquisition. She has blonde hair and blue eyes, and at the time of this article is 1.54 meters in height and 50 kilograms in weight. She does not appear to have any out-of-the-ordinary physical characteristics, and appears to be, for all intents and purposes, a normal human being in good health. SCP-105B is a Polaroid One Step Express camera, manufactured in 1982. SCP-105B does not appear to have any out-of-the-ordinary physical characteristics, but appears to be, for all intents and purposes, a normal Polaroid camera, operating normally for all persons aside from SCP-105. When SCP-105 holds a photograph taken by SCP-105B, the photograph changes from a still image to that of a real-time image of the location in question. SCP-105 is also able to reach through the photograph and manipulate objects within reach of the original point at which the photograph was taken. Persons witnessing this manipulation report seeing a disembodied female hand determined to be that of SCP-105, reaching out from an invisible portal and carrying out the actions indicated. SCP-105B and the photographs taken by said camera have no unusual properties when used by any other person. SCP-105 has demonstrated limited ability to manipulate objects through other photographs, but can only achieve fine control using photographs taken through SCP-105B. So far, SCP-105 has only been able to significantly advance her ability by using photographs taken by SCP-105B. Appendix 1. Circumstances of Acquisition SCP-105 was brought to the Foundation's attention shortly after the murder of her boyfriend. SCP-105 claimed to have been on the phone with the victim at the time of his murder, prompting her to hurry to his side. However, telephone records did not correspond to her story, making her suspect in the murder. SCP-105 informed her lawyer that she had in fact witnessed the murder through a photograph she had taken with her boyfriend several days prior. The attorney in question disregarded the story and recommended that the subject plead guilty. Subject refused to do so and subsequently told her story in court, offering to demonstrate her ability. This led to Foundation contact. Subject was immediately contained by the Foundation. Foundation personnel retrieved SCP-105B from SCP-105's home, replacing it with an identical model, and returned it to her. SCP-105's parents were informed that she was killed during the botched escape of another patient, while both were in custody of a psychiatric care facility. Appendix 2. Excerpt from interview log 105-08-4426. Begin log. Doctor, please give a brief personal introduction, including date and place of birth, and your name. SCP-105. Okay. My name is Iris Thompson. I was born in Phoenix, Arizona, on May 12th. Doctor. Good. First question. When did you become aware of your abilities? SCP-105. I'm not sure, but I think I was either 10 or 11. I remember because I was looking at a picture of the ocean and I noticed that the waves began moving. Doctor, how did your parents respond when you told them? SCP-105. They just said that I had an overactive imagination. Doctor, when did you discover that you were able to manipulate objects through a photograph? SCP-105. It first happened when I was 11, 12 maybe? My family took a trip to the Grand Canyon. I looked through the photo album after we got home and brushed my hand up against one by accident. When I did, I pushed a rock over the edge, falling into the canyon. I could actually hear it clatter on the way down. Doctor, go on. SCP-105. I became fascinated with photography after that. Most of the time, it didn't work with photographs I took, but my parents got me a Polaroid One Step Express camera. I'd been begging for them to get it since Christmas. SCP-105 starts smiling. After I got the camera, the photos got easier to interact with. Doctor, this is the camera we refer to as 105B, your personal camera. SCP-105. Yes, sir. Doctor, how many photos can you focus on at one time? SCP-105. I've gotten up to 10 at once with my personal camera, but I'm sure I could do more eventually. Doctor, what is your impression of your time with the Foundation so far? SCP-105 remains silent. Doctor, please do answer. We don't take offense at these things. SCP-105. It's sort of like New Prison, New Warden, but I know it's better than what could have happened to me. Doctor, you've been very cooperative during your time here. SCP-105. I'm a pretty well-behaved sort of person. I also like doing the experiments, some of those things with photographs I never would have thought of. Doctor, do you know why I'm asking you these questions, Iris? SCP-105. No, sir. Doctor, we've been setting up a special program. If it goes through, you'll be occasionally allowed to leave the site and move about in the outside world. All we ask of you in return are a few favors. Are you interested? And log. Addendum 3. History of Service with Mobile Task Force Omega-7. SCP-105 was the second humanoid SCP recruited to Mobile Task Force Omega-7 under the Pandora's Box Initiative. Unlike Team Able, associated with SCP-076-2, which was assigned to strike and capture operations, Team Iris had the primary mission of reconnaissance and intelligence gathering. Team Iris carried out over 20 missions in cooperation with the Bowie Commission. These missions were carried out swiftly and without incident. The first disciplinary incident involving SCP-105 involved the escalation of Team Iris missions from reconnaissance to wetwork. SCP-105 violently opposed the use of her abilities to carry out assassinations, even after members of the Bowie Commission repeatedly attempted to secure her cooperation. During these events, SCP-105 became emotionally distressed and attempted to deceive Foundation personnel into believing that her anomalous traits had disappeared. Dr. D submitted a report recommending that SCP-105 be reclassified as neutralized, undergo amnestic treatment, and be released to the public with regular monitoring. This recommendation was denied. Following this, Dr. D aided SCP-105 in a containment breach, aiming to escape Foundation custody. This breach was unsuccessful, and SCP-105 was recontained. Investigation afterwards determined that Dr. D had intentionally encouraged SCP-105 to claim loss of anomalous abilities. SCP-105 redemonstrated her anomalous abilities in exchange for restoration of limited privileges. Following the end of the Pandora's Box initiative, all Mobile Task Force Omega-7 teams were disbanded, and SCP-105 was returned to Site-17. Because of the security risk she represents and lack of current utility, SCP-105 is presently not allowed access to SCP-105-B. All further information regarding Mobile Task Force Omega-7 is sealed by order of the Records and Information Security Administration, Director of Records and Information Security Administration. Addendum 4 Special notice regarding current containment status. Many formal and informal reports have been made regarding SCP-105 and a supposed connection to Mobile Task Force Alpha-9. These reports constitute a serious breach of security. All information regarding Mobile Task Force Alpha-9 is restricted. All information regarding current research on anomalous characteristics of SCP-105 is restricted. All reports or rumors regarding any current or recent use of SCP-105 as a foundation asset are to be considered categorically false, and should be reported to the Records and Information Security Administration. Director of Records and Information Security Administration. Item number SCP-223 Object Class Euclid Special Containment Procedures SCP-223 is kept in a locked containment vault in Site-19. If the two photos missing from SCP-223 are recovered, they should be stored in two separate specially prepared vaults at Site-17. Any personnel who see any anomalies appear anywhere in SCP-223 must be reassigned to another project immediately. Such personnel must be kept under observation for mental instability, including tri-weekly examination by a site psychiatrist, and are advised to minimize their exposure to photographs of any kind. Description SCP-223 is a photo album, capable of holding 30 photos, bound like a small hardcover book. The photos are attached to the pages with an unknown adhesive. It matches the appearance of a product made by r— but lacks any brand. From Danny with love has been written on the back in blue ink. SCP-223 contains 28 photos, which chronicle an engaged couple's vacation to r— beach. The final two pages of the album have been ripped out. The couple in the photos has been positively identified as E and L, who went on the vacation depicted June of 19— E and L died on June— in a murder suicide by E. E's suicide note claimed he found his fiancee in bed with another man and killed her. However, no evidence of such an affair was ever found. There is one other person who frequently appears in the photos of SCP-223, a Caucasian male with attractive and somewhat androgynous features. Designation SCP-223-1. Based on his behavior in the photos, he seems to be a friend of the couple. All attempts to determine the identity of SCP-223-1 have proven fruitless. SCP-223-1 does not appear in photos and recorded footage of SCP-223, although careful comparative analysis of the photos and data expunged. Occasionally, persons reading SCP-223 will see the likeness of their romantic interest in one or more of SCP-223's photos, replacing an incidental bystander. Independent observers can verify that the photos do in fact change. However, these anomalies are always discovered by the individual they most concern. SCP-223 seems to target readers who are in a stable, happy romantic relationship with these anomalies. SCP-223 apparently can only target one person at a time in this way. If the discoverer of the anomaly, hereafter, the target, continues to read SCP-223, their perceptions of the album's contents will change radically. While any other reader continues to see the original photos, the target will see an album of photos of their romantic partner interacting with an androgynous but attractive member of the target's sex. The target invariably reacts with jealousy and suspicion, and if allowed will search for the final two pages, believing that the contents will prove whether or not the target's partner is cheating. The effects of SCP-223 on a given target wear off completely within one week, unless the target is exposed to new photos, or SCP-223. At this point, the current target's love interest's likeness will vanish from the album, and the target can safely view ordinary photographs. A former target attempting to view SCP-223's photographs will see if not allowed contact with SCP-223 following the initial discovery, the target's perceptions of other photographs will also be altered. The nature of these alterations varies depending on the content of the photos, but the majority involve the inclusion of a humanoid, similar to SCP-223-1. Pictures including both the target and the target's romantic partner seem to be the most psychologically damaging to view. Exposure to a sufficiently large number of photographs seems to cause a brainwashing effect in the target, creating a strong delusion of great danger that can only be resolved by returning the missing photos to SCP-223. This appears to be caused by a long succession of subliminal signals and traumatizing images, rather than by any actual psychic influence. Psych Report 223-6, Dr. Morris, Interview Log Examiner, please be seated. How long has it been since your first exposure? Morris, um, about a week? Yeah, that's right, seven days. It's all kind of blurred. Examiner, how do you feel? Morris, sort of paranoid, edgy, like he's watching me from somewhere, somehow. Any update on the missing photos? Examiner, who do you mean by he? Morris, the man we call 223-1 from the photos. He's... Examiner, yes? Morris, silence. Examiner, have you been exposed to any photos since your last visit? Morris, no. Examiner, good. What do you see here? Photo is of a grizzly bear drinking from a pool. Morris, um, it seems to be a photo of two bears mating. Examiner, very well. And this, photo is of a bed, no figures present. Morris, a naked man seated on a bed. Look, it's been a week, right? You can let me go? I've got to find those photos. Examiner, you seem extremely interested in SCP-223's missing photographs. Why? Morris, I've got to prove Lily's innocence. Examiner, Dr. Morris, your wife is in no danger. We discovered nearly 20 photographs hidden in and around your quarters, Dr. Morris. Whatever you saw in those photos is not real. Morris, lunging at the examiner, restrained by guards. Liar, you're working for them, aren't you? Examiner, to guards. Take him away for now. Morris, wait, wait, when can I see Lily again? Log ends. Note, Morris was given a class AM Nestic and is now returned to his full duties. Mrs. Morris has been informed that her husband is dead. Addendum 223-1, further analysis of E's autopsy report indicates that several of the wounds found on his body could not have been self-inflicted. Therefore, suicide has been ruled out as a cause of death. There is no evidence of anyone other than E entering or leaving the scene of the crime for at least 24 hours before and after his death, although one of the walls. Item number, SCP-228, Object Class, Safe. Special Containment Procedures, SCP-228 will be used to conduct experimental psychiatric testing at Site-23. SCP-228 is to be kept under glass in Observation Room 113 ADC at Site-23. Access to Observation Room 113 ADC will require either Level 4 authorization or a sign notification from Medical Director Light. Observation Room 113 ADC is to be monitored by no fewer than four high-definition video cameras and a reinforced one-way observation mirror, running the full length of the east wall. When a subject observes SCP-228, the reaction is to be documented by no fewer than five researchers, stationed behind the observation mirror as well as the subject's accompanying psychiatrist. Description, SCP-228 is a Polaroid photograph of variable appearance. It is apparent at this time that SCP-228 derives its subject matter from the subconscious mind of the viewer. The images produced are always visually clear but vary in interpretive coherency. For example, one viewer may cause SCP-228 to manifest a clear portrait of that viewer's father while another causes an image of a heart-shaped object, submerged in green fluid to run. The coherence of the image produced by SCP-228 appears to vary from subject to subject and is theorized to have some connection to the viewer's emotional state. SCP-228's various image manifestations can be photographed normally, although the photographs will not display the ability to manifest new images. It will manifest an image when viewed remotely by video feed. After SCP-228 has manifested an image, it will remain inert, displaying the same image until that viewer looks away. At that point, it will adapt its manifestation to reflect that of the current viewer. The question of what SCP-228 manifests when unobserved is moot. SCP-228 will be used to assist members of the psychiatric staff at Site-23. During psychoanalysis, the patient, hereafter referred to as the subject, will be asked leading questions and instructed to look at SCP-228. Once the manifestation has been recorded, the subject will be instructed to look away. At no point should the interviewer view SCP-228 before the subject, as this will corrupt the record and potentially skew psychoanalysis of the subject. Addendum. As of right now, no personnel who have previously been exposed to a visual memetic agent is authorized for exposure to SCP-228 due to the possibility of subsequent data expunged. Item number SCP-404. Object Class. Safe. Special Containment Procedures. SCP-404 is to be kept in Section Alpha-1 of the documents repository. Any movement of SCP-404 beyond Section Alpha-1 will result in termination. Description. SCP-404 is a pair of large manila envelopes, one of which has a series of pages attached to the front. Each page is stamped with a name, date, time, and number table, and contains multiple entries with known and unknown names. The ink has been dated to 1833, plus or minus 10 years, and the folder dated to 1834, plus or minus 10 years. Many signatures are noted on the grid, notably those of former document repository administrators expunged. All signatures also are followed by a numerical reference number. Currently, there are over 1,000 signatures on these pages, with additional pages appearing on their own when the previous ones become full. Account of these pages has proven impossible, as has the contents of the envelope as mentioned later.  Attempts to count the exact numbers of photographs have thus far failed. When a person attempts to count the total photographs, they will invariably get a number wrong at least twice and have to start over. If more than one person attempts to count them, they will begin to debate what number they were at last and start over. If a mechanized system is used to count the photographs, it will either glitch, fail, freeze, or skip, causing a recount to be required. Any person may pick up and access the first envelope, known as SCP-404-A. They may withdraw a single photograph at a time from the envelope. This photo will always be blank when drawn out, and will remain so until five seconds have passed. Should the photo remain in contact with the person who drew it longer than five seconds, it will then begin to fade into an image, in the same way a Polaroid develops. This image will be a crystal clear image from an event in the holder's past, which, thus far, has always been immediately recognized by the holder. Once this photograph has been developed, it will no longer fit into SCP-404-A, no matter what effort is applied to it. This image will fit perfectly into the second envelope, SCP-404-B. An undeveloped photo will not fit into SCP-404-B. After a developed photo is placed inside of SCP-404-B, the pages attached to the front of the envelope will update themselves, with the name, date, time, and an incrementing number. If a person picks up SCP-404-B, they immediately know which pages contain lines with their name, although they may not know the numbers. When they have viewed the numbers, or if they already know the number, they are able to draw that photo out of SCP-404-B, with only a few seconds of searching. The most disconcerting feature of SCP-404-B is that once the subject has left the presence of the envelopes for longer than an hour, they forget interacting with either envelope, as well as the memory imprinted on the photo. This effect lasts until the subjects re-enter the presence of SCP-404-A or B, at which time they regain their memory of having used the envelopes, but will not remember the event on the photograph until it is viewed again. Researchers who oversee the testing of SCP-404-A or B, but who do not interact with the contents of the envelope, are capable of remembering both the test and the image to the best their natural memory allows. Document No. 4041 Subject is Class D personnel who has been instructed to draw five photos from SCP-404-A. First photo drawn contains an image of a young girl on a tire swing, being pushed from behind. Subject confirms that the girl is their younger sister at age six. Second photo contains image of the same girl now older, nude, in a bedroom setting, laying on a bed and smiling, wagging finger at the viewer. Subject confirms once again that this is their sister and is noted becoming distressed. Third photo drawn contains image of same girl, older again, in the garb of high school graduation with her arm around a male of similar age. Subject confirms again this is his sister and the boy's or boyfriend. Subject seems agitated and reluctant to continue until assured he must only draw two more photos. Fourth photo drawn contains image of a car that has gone half off of a road. The windows on all sides are smashed and the driver door is open and the driver seat is the same boy from the previous photo with no discernible age difference. There is considerable bodily damage on the boy as well as a slit throat. Subject confirms this is the same boy. Fifth photo drawn shows a funeral setting. The girl from the previous photos is the center of focus.  Subject confirms that this is his sister again. All photos drawn will no longer fit into SCP-404-A so are filed inside of SCP-404-B. Subject's name, current date and numbers now appear on the topmost sheet of SCP-404-B. After the test had completed the subject was allowed to leave the testing area and then questioned about the photos. After a time lapse of approximately one hour, Subject became unable to answer any further questions about the photos and denied having ever been part of a test for this day. The subject is unable to account for the time spent in the testing chamber and also denies knowledge of ever attending a funeral with his sister for any individual. Up until the time threshold had passed, Subject had been willing to answer any and all questions regarding the incident in the photos. Loss of memory attributed to interaction with SCP-404-A and B. Document 4042 Subject is Dr. P. who has recently been through an overly dramatic breakup of a relationship. She has volunteered for this test and has been informed of the anticipated results. First photo drawn from SCP-404-A develops into the image of a young man in overalls, leaning against a car and covered in oil stains. Subject confirms this is her ex-boyfriend and that he was mechanically inclined. Second photo drawn from SCP-404-A shows the same man in a very angry state, postured as if he is striking the viewer. Subject confirms again that this is her ex-boyfriend and that this event is part of what led to their separation. Third photo drawn from SCP-404-A shows the same man in an amusement park setting, seated on a roller coaster beside the viewer. Subject confirms this was their first date. Fourth photo drawn from SCP-404-A is completely blank. Twice the normal time allowed for a photo to develop passes and photo remains blank. This photo also is returned to SCP-404-A with no effort, while all other photos must be inserted into SCP-404-B, which now shows the subject's name with three new timestamps and numbers listed on its pages. After the fourth photo was drawn, subject was released and approached three hours later, where she was asked as to the status of her relationship with the boyfriend. Subject denies knowing any such person, or ever having participated in any tests today. Subject is also unable to account for lost time, but shows no concern over the disparity. Document number 4043. Subject for this test is Dr. Dr. R was chosen at random, with no end result expected. First photo drawn is a first person perspective of a water paint portrait being drawn. The artist's hands are visible in the photo, and Dr. confirms this is her at age four. Second photo drawn is of an elderly man smiling. Photo perspective suggests the viewer is raised up in the air looking down at the man. Dr. R confirms this is her grandfather, who passed away approximately a year and a half later. Third photo is drawn after a brief reprise to allow Dr. R to collect herself. This photo shows a funeral service, and the perspective again suggests the viewer is a short individual. Dr. R confirms this is her grandfather's funeral service. This photo also shows the elderly man again at the headstone, which is the viewer's point of focus in this photo. The elderly man is marginally out of focus compared to his surroundings, which are crisp and clear. In addition, he is semi-transparent to a degree of approximately 15%, suggesting that his presence is either a true spectral manifestation or exists only in the mind of the viewer. Dr. R requested a copy of this third photo, and a digital copy was created for her without incident. The original has been filed into SCP-404-B, and the copy is framed in Dr. R's office. Document number 4044. Subjects for this test are Dr. R and Dr. R, whom have been working together for the past two years. These two doctors were chosen at random from established pairs of staff who had been working on projects together for over one year. Dr. R draws the first photo from SCP-404-A. This photo, when developed, shows an older woman in her mid-30s on a bed, nude. The woman is posed in a data-expunged position from the viewer's perspective. Dr. R identifies the woman as his wife. Dr. R attempts to protest this until a photo is produced from Dr. R's wallet, which confirms the identity of the woman in the photo. The guard on staff intervene in the escalation of tempers, and inform both doctors to continue with the test. Personal matters will be resolved afterwards. Dr. R draws the second photo from SCP-404-A. It is of note that Dr. R's expression was malicious towards Dr. R after the previous photo. The photo drawn by Dr. R develops into a girl of young age who appears to be in a data-expunged pose from the viewer's perspective. This girl is confirmed as Dr. R's daughter, who is data-expunged years old. Tension in the room escalates after this photo once more, and the guards on duty step in again. Due to the nature of the photos being drawn, only two more, one from each doctor, are requested. Dr. R draws the third photo from SCP-404-A. This photo contains an image of the same girl from the second drawing, nude again, in a new pose. Dr. R reluctantly confirms this is in fact his own daughter. Both doctors are calmed down by this event. However, both appear to be extremely uncomfortable and express repeated desires for this test to end. Dr. R draws the final photo for this test, which after developing, appears to be Dr. R wearing an evening dress. The test is immediately ended by the administering personnel, and both doctors placed on notice until the results of this test can be confirmed. A lapse of a full day's time was allowed to pass before either doctor was confronted about the previous day's test results. Neither doctor claims to have any memory of participating in any test, nor any inappropriate behavior with either each other, or any of the subjects from the photos. All photos were filed in SCP-404-B, and both doctors have been restricted access from SCP-404 from here forward. Continued observation of the doctors from this test show a 6% increase in productivity. This may or may not be related to the loss of the memories exposed in this test. Document No. 4045 Subject for this test is a deceased class D personnel, who expired while engaged in testing of SCP-404-B. The body of the subject was manipulated by two members of staff, in conjunction with medical implements, to draw a series of photos from SCP-404-A. First photo drawn develops into a view of SCP-404-B at rest. It is assumed this is what the subject saw as the testing of SCP-404-B was commencing. Second photo drawn develops into an extreme close-up view of SCP-404-B. The nature of this photo suggests that this was the moment at which the subject expired. The right side of the photo is blacked out, as is expected from a scene viewed by a person with a single eye. Third photo drawn develops into data expunged. Test aborted immediately, after viewing of the photo sends the staff manipulating the subject's body into a state of rage. Guards enter the room to control the situation. One guard enters the same state as the research staff, and turns on another guard, who is restraining the original test members. Additional armed staff enter area, and developed photo is covered by a jacket, to prevent further viewing by any other staff. After the events of this test, any further exposure of the deceased with SCP-404 has been expressly forbidden. All staff who were involved in the test were restrained in solitary confinement, and after 48 hours were given a psychological evaluation and released. Those who requested amnestics were allowed to utilize them. All photos made during this test were not filed into SCP-404-B, but were instead sequestered into the care of Dr. Wendler and are not to be accessed by any staff without maximum clearance. Item number SCP-592 Object Class Euclid Special Containment Procedures SCP-592 should be contained in Research Cell 1611e at all times, locked in a steel box in the middle of a frosted glass containment cubicle. Also in the cubicle are a table, two computers, a standard-sized computer scanner, an internal network connection port, and two pairs of visual distortion goggles, which must be worn upon entering the cubicle, so as to make SCP-592 illegible. The first computer serves as an analysis machine, the second as a custom firewall. All devices have been modified with specialized software and hardware, and the network port has been secured such that no device other than the firewall may use it. It is strictly necessary that the computers and scanner are turned off and unplugged after experimenting, and that they are only powered for the duration of the experiment. The front and back covers of SCP-592 are to be covered in black opaque tape at all times. The cell must be guarded continually to ensure that SCP-592 is not removed. Description SCP-592 is a large hardcover book which exhibits no external qualities that could be unusual, but which can cause delusions, psychosis, changes in physical health and appearance, or even severe wounding when read. It is titled Chronicle of the 20th Century, and consists of 450 all-color printed pages. It is reported that it has a printed cover, no dust jacket, with the title of the book, the publisher, and a selection of illustrations from within the text. The original cover is a deep blue. The spine contains the title and publisher name, and is left uncovered by tape. The cover page informs the reader that it was published by Interworld Press, 54th Street, Chicago, Illinois, in 1996. A company named Interworld Press has never been registered in the US, nor does the street list it exist. The text is a collection of newspaper clippings and short articles on major events, from January 1900 to December 1995. Much of the first half of the text agrees with recorded events, but at some point no later than the 15th of June 1956, a date researchers have termed the point of divergence, POD. The text begins to diverge from known history. These divergences become more common and acute the further away from the POD the text is. Subjects reading from the text before the POD report no ill effect, and generally comment that the text is well written, and seems very accurately researched. Subjects reading from the book after the POD understand the passage read as accepted truth, and vehemently deny any suggestions that the text is in fact incorrect. The claims subjects make are often disturbing or shocking in nature. It also appears that a subject that has read passages from a certain year can recount events that are detailed in later sections of the book. It has been found that those born before the date which the test passage indicates, and lived in or nearby the location of the event described, may construct personal experiences built around the event, and describe them as they would any other vivid memory. The subject will go to great measures to defend the reality of their story, often turning violent if under interrogation. Exposure to SCP-592 may alter physical characteristics of the subject to conform with the events of the passage being read. This can vary from small changes in appearance or clothing to the infliction of severe wounds. For example, in one instance, a subject, D-94920, produced a scar during an interview, stating that he picked it up during the data expunged. His widow, when presented with the scar, located on his was surprised, stating she had not noticed the scar before. It has been found that once the subject discovers that the world is inconsistent with their acquired memories, they begin to feel that the present reality is an illusion, a dream, or a deceit, often stating malevolent or government forces are at work in maintaining the illusion. Subjects who reach this stage enter into a profound and chronic psychosis. All attempts to treat this delusion have failed. The exact effects vary. Date of passage read, before POD. Effects. No ill short or long term effects. Date of passage read, less than two months after POD. Effects. Short term. Confusion. No ill long term effects. Date of passage read, less than two years after POD. Effects. Short term. Confusion. Long term. Minor mental illness. Development of ticks. Nightmares. Minor paranoia episodes. And panic attacks. Date of passage read, less than 10 years after POD. Effects. Short term. Confusion. Violent episodes. Long term. Deeply ingrained delusion formed, leading to debilitating paranoia, psychosis, and schizophrenia type disorders. Date of passage read, greater than 10 years after POD or earlier if subject forms a personal experience. Effects. Short term. Confusion. Violent episodes. Long term. Acute psychosis and delusions. Crippling agnosia. Becomes withdrawn. High chance of suicidal or homicidal behavior. Severe risk of immediate but variable physical change in subject. SCP-592 was recovered during a narcotics raid in August 2006 on the property of Mr. the leader of a controversial religious group called the Church of the True History. Despite being in possession of SCP-592, Mr. White is believed to have started the Church for financial gain rather than revelation. The owner may have only survived exposure from SCP-592 for almost two years because of his rampant drug use, which included methamphetamine, cocaine, and a host of opioids. Though psychedelics, especially DMT, are known to have been used and probably interacted with the effects of SCP-592 more than the others. He believed that his delusions came from his drug use, but noted that a year after exposure to SCP-592, he found himself turning to drugs more often to quote, hide away from the truth, end quote. In custody and deprived of his usual chemical relief, the suspect became comatose and died a week later. The circumstances of the acquisition has led to proposals to test SCP-592 in combination with psychedelic drugs. Addendum 592A. The chemical properties of SCP-592 have been studied by Dr. Grayson and the Chemical Forensics team. Dr. Grayson reports that samples were obtained by means of cutting small squares of paper from the book while wearing distortion goggles. The squares were small enough to contain no more than one word. Squares containing portions of illustrations were covered by black opaque tape as soon as extracted. Our results indicate that the chemical properties of SCP-592 differ very little from any other color publication. The paper primarily consists of cellulose from common woods, and the black and yellow inks are standard. It has been found, however, that some chemicals used in the cyan and magenta inks, while entirely known to science, are not normally used in the industry. An expert in inks and dyes has commented that the chemicals would be an inferior but acceptable substitutes of those currently in use if certain metal elements were much scarcer and therefore much more expensive than they are today. Testing Protocol SCP-592 is under no circumstances to be read by a human, unless that person is a subject of an authorized test. SCP-592 is only to be analyzed by computer, using the systems provided. The book is to be scanned on a per page basis, using the scanner provided. The scanned image is then sent to the analysis machine. The scanner and other devices are modified such that they can be used while wearing the visual distortion goggles. Note, researchers must pass training course 305-S, intermediate Braille, and training course 10E, use of SCP imaging software before being approved to test SCP-592. The analysis machine is modified such that it contains and supports no non-volatile, permanent, writable storage devices, such that it never stores a copy of the scanned image that may persist beyond the analysis phase. The image is destroyed from the system RAM as soon as possible, through standard secure memory flushing routines. The firewall is configured to study incoming packets for characteristics of properly processed output, and destroys the packet if an insufficient amount of characteristics are discovered. This prevents the transmission of text or images that have not been sufficiently obfuscated. As SCP-592 is heavily illustrated, there are two analysis protocols. Analysis of text. The analysis machine uses industry standard optical character recognition, OCR systems, to parse the text in the image, and then destroys the image. The text file is then passed through a series of custom natural language processing, or NLP, routines, to summarize the text. The original text file is then destroyed, and the summary is sent to the Secure Foundation intranet. The NLP routines analyze the passage using statistical methods, incorporating databases of diverse English corpora, some details of other SCPs, a correct chronology of events extracted from various texts, and a severely limited referential network of other entries in SCP-592. Note, efforts to increase the degree in which analysis references other events resulted in an incident whereby data expunged, resulting in three researchers being euthanized. See Document SCP-592 The summary is composed in such a way as to mitigate any possibility of exposure to the true material of the passage, but still provide useful analytical details about the event described. An example SCP-592-SUMM-090777A Note, lexical tokens from source databases are presented in all caps. Date, 7th of September, 1977 Location, Southern United States, 99% certainty Type, newspaper clipping Summary, the passage is describing human conflict. The human conflict is of an ideological or religious nature. The passage seems, 56%, to be lamenting in tone. The passage contains the numbers 2000, 1977, and 16. A relation to event SUMM-010777C and event R is likely, 78% certainty. It is certain, 98% that the passage contains a reference to both SCP- and SCP-related incidents. Incident 592-Loss of a limb following exposure to SCP-592 article on war. Analysis of images SCP-592 contains around 200 illustrations. These are cropped from the scanned image as part of the OCR routine. The image is then subjected to a number of Fourier transforms and convolutions to obscure the resulting output from human recognition while simultaneously analyzing its structure and providing a summary of its contents by statistical analysis. Record of the original image is then destroyed. An example report SCP-592-IMG-098 Date 1st of April 1963 Location Unknown bedroom with western furnishings Type Full color photograph Subject The image contains two adult persons standing, one human child sitting on a chair or stool, and SCP- With 100% certainty, the persons in the image should have facial features. With 100% certainty, the persons in the image do not have facial features.


The thing with the Equal Science Desk, right, I meet a lot of people that say, you know, they want equality in the world, they want sustainability in the world, they believe the world is unjust, they talk about a lot of social issues, a lot of economic issues, a lot of political issues, and all that jazz, right? But they don't really understand that what they're talking about, what the base of what it is they're talking about is mathematics, because as soon as they start talking about equality and sustainability and all that jazz, they're talking about the equal sign, right? They're talking about this symbol right here, they're saying they want equality, this side equals this side, they want sustainability, this side equals this side, right? That's what they're talking about, sustainability means, what you're taking out of the earth, you're putting at least as much back into the earth, right? Sustaining, right? They're talking about maintaining a budget, they're talking about the equal sign, right? They want to be economically independent, they're talking about the equal sign, how much you earn should be at least, right, equivalent to how much you spend, as soon as you start spending more than you earn, you're in the negative, you're not financially independent, you're in debt, right? So anyone talking about financial independence, they're really talking about the equal sign, anyone talking about the environment, sustainability, they're talking about the equal sign, anyone that's talking about social justice is really supposed to be talking about the equal sign, but unfortunately what I find is a lot of people are illiterate in the language of mathematics, so everything that they're talking about on this level has a limit to where they can take it because they don't understand that you need to quantify these things to really have that stuff in your life, right? Now for us in the last couple of streams, math streams, anyway, we talked about how to deal with addition, subtraction, multiplication and division, right? Once we learn how to do these four simple operations, and with these four simple operations, you can do almost anything you want in mathematics, right? At least in the real world, maybe not theoretical mathematics, but anything that you want to apply to your life. As long as you know how to ask, subtract, multiply and divide and move around the equal sign, right? As long as you know how to do this, you can use mathematics to do almost anything you want. So let me explain to you what it is when we say we want to move around the equal sign. So check this out. Let's say we have an expression or equation that says x is equal to 5, right? That's intuitive. That basically says whatever your x is, x is equal to 5, okay? And the units here are irrelevant. When we're talking about mathematics, just the language of mathematics, the syntax of the language of mathematics, units do not matter. This could be x, x is how many comic books I'm going to buy this week is equal to 5 comic books. So comic books be my units, right? Comic books. x could be how many cookies I've eaten, I ate yesterday and probably more than 5, but let's say 5, I'm down to 2, right? I made 2 trades. So 5 could be cookies. Okay. 5 could be a comic book that I'm buying cost $5. That could be money. It could be time in seconds, right? And time couldn't be, it's sort of a generic unit. You would have to specify, is it seconds? Is it minutes? Is it hours? Is it years, right? And different places where you apply your mathematics may use different units more often than others, right? So for example, if you're in finances, you're probably using, or you're trying to do personal finance economics, you're probably using years, not hours. You don't look at your investments on an hourly basis. If you're looking at them on an hourly basis, you're gambling, right? Minutes, gambling. Seconds, gambling, right? So the units really define where you are, where you're applying them, right? But when you're trying to learn mathematics, you don't care about the units, right? The units come into play when you're delving, when you're taking mathematics and using it in a system, right? Is it personal finance? Is it physics? Is it electrodynamics? Is it biology? Is it food? Is it shopping? Is it personal finance, investing? Whatever it is, right? So consider that when you're learning mathematics, forget about trying to apply the mathematics right away if you don't know how to syntax works, how the language of mathematics works. First, learn how the language of mathematics works, right? And it's just basically intuitive rules, and then you're going to apply the mathematics in different places, right? So for example, let's assume we didn't have x equals five. Let's assume we had this. x plus two is equal to five, right? So we take this guy out. So we say x plus two is equal to five. Well, for us, when we're trying to do mathematics, if we have an equal sign and the equal sign kicks us up into another realm, right? All of a sudden the equal sign allows us to look at different systems and try to understand different systems, right? That's the power of the equal sign. The equal sign gives us solutions to problems, right? Or questions that we have. So when you're dealing with an equal sign, if you're trying to solve something, right? Solve for x. And the x would be your unknown, okay? Slick-mic. My favorite question always used to be exponentials graphing the growth of bacteria. So yeah, I don't know why, but the correlation between inputs and outputs and systems always satisfied me. Yeah, exponentials is amazing. And it's no longer only the best example is no longer. Well, the best example is still bacteria growth or exponential decay, radioactive decay. It's also in economics right now. Or our current economic system because there's a lot of exponential growths going on. We've talked about this stuff, right? So whenever you're trying to solve an equation, right? Because this is solving for x, solving equation.  Let's do this in blue. Let's do this in blue. Think of x is equal to unknown, right? So your unknown is what you're trying to find, right? x marks the spot. So when you're trying to solve for x, when you're trying to solve for an equation, you're trying to get the variable by itself, right? Solve for x means, means get the variable by itself, right? That's what that means. Solve for x means get the variable by itself. And by the way, some people have a hard time understanding what variable means. Okay, variable means find what the unknown is that can vary, right? Variable is something that can vary. That's it. And in mathematics, usually, preliminary mathematics anyway, we use letters of the alphabet for the unknown, for the variable. In this case, our variable is x, right? So solve for x means get the variable or get x by itself. That's what solving equation means, right? Get the variable by itself or get a specific variable by itself, right? So what do we need to do? We need to undo what's being done to it. So undo. How do you, how do you do this? How? How do you do this? How do you do this? Do you do this? The answer? Undo what's being done to x or the variable, right? So let's stay consistent. So undo what's being done to the, to the variable. The variable. In this case, for us, is x. So undo what's being done to the variable. And here is the thing. Here's a beautiful thing about mathematics. Mathematics is very unique in our lives, really, because for almost, almost everything that you can do in math, you could undo it in math, right? So in mathematics, almost always, whatever you're looking at has an opposite, right? So the opposite of addition is subtraction. The opposite of multiplication is division, right? Those are the four that we're talking about right now. The opposite of exponential powers where things are growing are radicals or roots, which are really the denominator and exponential, but we'll get into that stuff, right? And we have multiple times through the math videos, hundreds of math videos we created on the sensitive. So for us to get x by itself, we have to undo what's being done to the x to get it by itself, right? And there's an order of operations here, right? Don't forget the order of operations. Don't. Let's put a little note, note, note, note. Don't forget, oops, forget the order of operations. And what are we talking about with the order of operations? Bed mass or pet mass or depending on where you are, right? We're talking about bed mass, right? Brackets, exponents, division, multiplication, addition, subtraction, right? Now, bed mass, if you're simplifying expressions, which we just, we learned how to add, subtract, multiply, and divide, we didn't go into simplifying. We just went into straight into solving equations. Simplifying won't make sense. We'll come back to it, okay? But let's deal with the equal sign right now. So if you're simplifying expressions, you go this way. If you're solving for equations, you go the other way. Solving, right? You take your addition and subtraction first, and then multiplication, division, and then exponents, and then whatever is in the brackets, okay? In our case, we have this thing here, right? We want to solve for x and get x by itself. Well, what's being done to the x? We're adding to x, right? So to get x by itself, we have to subtract 2 from this side, right? So if we have x plus 2 is equal to 5. To get rid of this 2, we're going to subtract 2, right? Now, what does the equal sign mean? The equal sign means this. It means it's a teeter-totter, and you always have to keep it equal, balanced, and if you do something on one side, you've got to do it to the other side. That's what the equal sign means. It means this side is equal to this side. This side has to remain equal to this side. So if there's anything you're doing to this side, you have to do it to the other side, right? So for us, if we're subtracting 2 from this side, then we have to subtract 2 from this side. We have no choice. We have to keep the teeter-totter balanced. If we're adding something here, then we need to add something on this side, right? How do I put this up here? Oh my goodness, it's going to fall. Here, we'll do it this way. Here's a teeter-totter. If I add a pen on this side, I've got to add an equal pen on this side, right? It's a different color, so that's not going to work. Maybe the color weights are different. Two reds, they have to balance. If I have my teeter-totter, and if I add a pen on this side, then this side is going to go down. This side is going to go up. That's not the definition of an equal sign. The definition of an equal sign says no. If you're starting off with two things that are equal, right? Two sides that are equal, if you add something on this side, you've got to add it to this side. That's the concept, right? So if we subtract 2 from this side, we've got to subtract 2 from that side. And what do we do? We go x plus 2 minus 2. Well, positive 2 and negative 2, right? 2 minus 2, they kill each other. So what do we have left on this side? We just have x left on this side. 5 minus 2 is 3. 3. When we get to the end, we got our answer. x equals 3. We just solved for x. We solved for our unknown. We isolated the variable. Get the variable by itself. We isolated the variable. Cancellation, law of a group. Cancellation, law of a group. Does that make sense? So let's expand on this. Let's look at more complicated equations or do a couple of more samples of this, right? And we'll talk. We'll incorporate bed mass in there as well. Because bed mass, this thing here, when you try to simplify, means simplify one side if you can and simplify the other side if you can before you start moving things around or isolating the variable. And by the way, gang, thank you for the follows. Appreciate them. I'm sorry if I don't recognize them or announce them right away just because I don't want to lose a train of thought here, right? So let's do more complicated stuff, okay? And if you want to take notes by the way, gang, all you got to do is just take screenshots of this, right? And then you can just have that as a note. So let's do this. We solved for x when it's x plus 2 is equal to 5. So the question is, and this is what the question will be, solve for x. Solve for x. Now I've seen a lot of schools try to make it more exciting for kids to do mathematics. And what they do is change the x to y. Solve for y or solve for s or solve for w or solve for, I think that's fine and dandy because they're trying to get the point across that variable could be any letter, right? For me, it's ridiculous to try to change the letters to try to make it more exciting for kids to be able to solve equations or do algebra. It doesn't even have to be a letter. It doesn't even have to be a letter, right? Solve for a triangle. Solve for the triangle. Solve for the triangle. Solve for the dude.  Whatever it is, for me, it's better to add the variation in the questions based on the difficulty of the question instead of the phrasing of the question. So I like working with x because to me, x marks the spot, right? So let's do this one. x plus 7 is equal to 4, right? So we want to get x by itself. So undo what's being done to the x. What's being done to the x is 7 is being added to the x. So you subtract 7 from here. You subtract 7 up from here. 7 kills 7. Line up the equal sign. On this side, you have x by itself. 4 minus 7 is negative 3, right? Nice. Putin roster. x equals negative 3. I always like the smiley face. Solve for the smiley face. Solve for the happy dude, right? Now for me, I've mentioned this before a few times. Mathematicians are lazy, right? Especially when they're doing mathematics. For me, I like things visual and mathematicians are in general very visual, right? So when I write down x plus 7 is equal to 4, instead of writing minus 7 on this side and minus 7 on this side, I think about the adding and subtracting as movements. So I grab a positive 7, bring it over, and whenever you jump over an equal sign, the sign changes, right? So positive 7, when it goes over to the other side, becomes a negative 7. So positive 7 has moved. The only thing we have on this side is x, and 4 minus 7 is negative 3, right? Here's another one. x minus 4 is equal to 3. Well, we've got to get x by itself. This is negative 4. Borno for cities. Series. Isis. Isis. Isis. Borno, how are you doing? Welcome to another live stream. So you can think about it two ways. You can go plus 4 on this side, plus 4 on this side, so x is equal to 7, or you can think about it this way. Here, we'll do the same thing here. x minus 4 is equal to 3. I want to move the 4 plus 4, change the size. Left on this side is x, and this is 7. Up to you which one you guys want to use. I like doing this. Easy. Easy. Let's do more variations. The question is still solved for x, right? How about we do this? Are we on number 4? Let's say number 4. x plus 3 minus 4 is equal to 7 plus 2. Well, we have the equal sign here. We've got things on this side and things on that side. Now before you start solving for a variable, solving for x, isolating a variable, you did it that fast? Oh, it does too. I had to think about it. Do you stream on any other platform? I don't stream on any other platform, but I upload the videos to SensorTube. Most of the videos to SensorTube, less and less recently. SensorTube, BitShoot, and Rumble, everything goes to. So BitShoot and Rumble, I upload everything. And we upload audios when we don't have visuals to SoundCloud's podcast. Ronnie, how are you doing? Ronnie90. Hello, hello. Right? So when you're trying to solve for x, isolate the variable, I always love math to do it. Nice. Me too. Right? If you're trying to get x by itself, instead of, I mean, theoretically, you could do this. What's being done to the x here? Well, 3 is being added to x and then you're subtracting 4. So you could do it in a weird way, not a weird way, but a long way and go, okay, I'm going to grab the negative 4, bring it over. It becomes positive 4. I'm going to grab the positive 3, bring it over. It becomes negative 3 because we're jumping over the equal sign. Right? What we have left on this side is just x and this we just end up doing. 7 plus 2 is 9, plus 4 is 13, minus 3 is 10. Putin Roster got it. 10. Right? Now, that's extra work. Right? Grab everything, grab each one individually and bring them over. Right? Well, how about doing it this way? And it's faster. x plus 3, minus 4, 7 plus 2. Same question. Right? And not only is it faster, it creates less errors. Right? So whenever you're trying to solve for an equation equal sign, line up your equal sign. Really, mathematics is very visual. You want to keep everything tight, symmetrical. Keep it clean. Do you work properly? I've said this before, right? If you're going to write the word or sentence, I like apples. Right? I like apples. Right? Period. Or if you want to amplify it, I like apples. Right? That's in a sentence, my scrawny type of writing. Right? Hopefully you can read that. You don't go and say, I like apples. You don't write it like that. You could try to decipher it that way. It could be a game. Here's a puzzle. What did we say? Right? But the point of mathematics is not to make things more difficult. Right? It's to solve equations, simplify things. The point of languages is to get your point across. Right? You could use languages to create complicated puzzles, but you want to get your idea across. Right? Mano. Mano. Mano Steel 99. Hello. Hello. Twist. How are you doing? How are you doing today? Doing good. I popped a little cookie. Right? So keep that in mind. Keep your work tight. That's one of the things I try to emphasize with a lot of my students. Right? So if we're trying to isolate the ax, instead of moving these guys individually over first, what we're going to do is simplify each side as much as we can first. That's where bed mass kicks in. Right? So bed mass, if you're doing this, mass, if you're doing this, when you're simplifying, you go this way. And if you're going to simplify each side first, do brackets first. Do we have any brackets? No. Exponents? No. Division? No. Multiplication? No. Addition and subtraction? Yes, we do. Because multiplication and division have the same weight. Addition and subtraction have the same weight. It doesn't make a difference which way you do them. Okay? So we're going to do our addition and subtraction first. Well, over here, let's simplify this. Well, let's do this one first. Let's step before this one. Right? Seven plus two is nine. Cool. Three, this is positive three. Remember in the mantra, a sign in front of the number always goes with the number. So this isn't just a regular three. It's a positive three. It's not negative. And this isn't just a four. It's a negative four. Right? So positive three minus four, right, is negative one. So we've got x minus one. Right? We added one more level of doing the work to simplify at one level for us to be able to move this thing and only move one thing. Right? We're keeping track of less things. We're compartmentalizing the work. Right? On this side now, we move the negative one over, becomes positive one. We have x left and nine plus one is 10. Right? And this part is this way. We're doing solving. So when you're solving, you deal with the subtraction and addition first, and then multiplication and division, and then exponents, and then brackets. Well, in here, we had the addition subtraction. We took care of that. We ended up with the answer. We got none of the other ones. We're done. Right? Let's do more of these. We're going to build it up all the way to multiplying, dividing, and I'm not going to introduce any exponents yet, but we'll get into the brackets. Now take a look. What if we have more complicated? I have a question for you. For sure to us. What's the question before we're going to whiteboard? We've got space here. Let's do it. If it's math related, if it's not post your question and I'll do math and try to answer the question, I'm going to have a sip of tea while we wait for the question. Let's see what it's about. What I'm eating? Cookies. I'm going to pop a cookie while we wait. One more cookie. Feed your brain. How would you explain it to someone who solved that for x equals two? What do you mean? I had this issue while tutoring my niece, and I couldn't explain it to her well enough for her to grasp it in what way to a stack. So if I give you anything and she gets the wrong answer and puts down x equals two, or the answer is x equals two and you have to explain to them what that means. Yeah, let's see. Essentially you want your right hand side equals left hand side. Yeah, right hand side equals left hand side. So you had x plus three. Okay, sure. Let me write that down. x plus three minus four. So we have x plus three minus four is equal to seven plus two. x plus three minus four is equal to seven plus two. So the way we did it when x minus one is equal to nine, grab the one over plus one. So x is equal to ten. So she ends up doing it and she gets x is equal to two. Your niece probably does not understand the x. So for this she would do the work and get x equals two. And you want to explain to her why that's wrong? Roddy says this, I never liked the whole left hand side, right hand side. The position of those numbers can be anywhere and the x would be solved fine. Sure, but every line when you're solving for something, every line is equivalent to the previous line. So this line and this line are the same line and the same line. So all of these are the same, right? I just woke up, but I see where she messed up. She did on both sides. Yeah, I was, I'm assuming where she messed up was when she did this, she would have added this thought that this was seven, right? So she would have done this and then the seven would have killed the seven. So x plus seven is equal to seven plus two. She would have misread this thing as a negative, put a seven and then brought this guy over minus seven and then you get seven kills seven. So you get two. If she did that, right? And that's the one thing. It's extremely important, it's extremely important to be able to see students work as someone as an educator, right? That's one of the reasons centralized education is so horrendous because a lot of it has to do with what do you call it? Yes and no or fill in the blanks or what do you call it? Multiple choice questions, right? So the only feedback a student can ever get is wrong or right, right? And the educator in general is not going to be looking at the students work because all they do is they hand in their multiple choice little sheet thing they scan, right? So there is no construct of feedback to students, which is just one of the reasons centralized education is just so horrendous. Okay. I haven't done simple math in years. My last math class was calculus three, so she threw me for them. Yeah. Teaching, look gang, trying to teach simple mathematics, just the basics of mathematics up is a difficult thing to do. Okay. Sometimes more difficult than the more complicated stuff, because the more complicated stuff the person you're talking to has a rudimentary understanding of the language of mathematics. When you're trying to build it from the base up, there is no conceptual understanding of the language of mathematics. So it becomes difficult. It requires patience, right? I have to look at it a little closer. Yeah. I hope that works, right? So if we're going to get into more complicated stuff, right? Here. X minus three plus two minus one plus four is equal to seven plus seven minus two, right? You could do any adding and subtracting in here, right? What do we have? Four, five. This is number six. Line up your equal sign. Combine like terms here. Seven plus seven is 14. Minus two is 12. Negative three. And you can, you can, what you can do is combine things. We got 10 already. I haven't done it yet. We got 10 again now. So what you can do is, instead of doing all the operations in one go, if you notice the pattern, you got 14. Oh, somebody's wrong. If you, if you notice a pattern, you can start eliminating things, simplifying things. So take a look at this thing. You got negative three and negative one. So minus three and minus one, you can think of as negative three and negative one. Well, negative three minus one is negative four plus four is zero. The negative four and four kill each other, right? So this, this and this are gone. You got a two left, right? Now you could write this here or you could have done the simplification here and did, brought it over here, right? I'm just going to do it over here instead of doing it here. So you see how it works instead of combining multiple operations in one shot, right? Okay. So we got x plus two here and then bring that over. You got this, you got x equals 10 and that's your answer, right? Student, why do numbers kill each other? They're a war. They cancel each other out. I know. I say kill. Maybe I should be saying cancel, but shorter word, less, less letters when we have null. And by the way, this may touch on Graham's question. What was it called? Public something. But I do almost anything to teach kids mathematics, right? And I found where you say negative three and negative one kill four. When you say they kill each other, kids tend to like that more than cancel each other out. So I have students that sometimes they're not really paying attention and they're not into it. They like it when we start killing numbers. So they pay attention and learn the process. Even though the word killing is not the best thing to use, it's a means to teach mathematics. I'm okay with that. Okay. So that's how we deal with adding and subtracting, right? Let's look at multiplication. Let's do something like this. Let's do two X is equal to eight, right? Roast of poon. As soon as I wrote it down, I knew you knew what that was, right?  That means multiplication. So this really means, this really means two times X, but we're not going to, mathematicians are lazy. We're not going to include that, right? So, so is the police. We should tell the students getting an A means you killed the cars, maybe. Well, we do have something like that.  Or musicians, oh man, they want on stage, they're set. Just, they just killed it, right? It is used. I would be the kind of kid who pays more attention, kind of kid who pays more attention if you kill numbers, yeah. So equals is the police equality. Hi, I'm Chico by the way. Das, 89, how are you doing? So over here, this is multiplication, right? Two times X is equal to eight. Well, it's the opposite of multiplication. What's the opposite of multiplication? Division. So to get X by itself, right, divide this side by two, and the equal sign says if you do something on one side, you got to do it to the other side, you divide this side by two, line up your equal sign, two kills two, you got X on this side, eight divided by two is four, right? So what did we do? We didn't have any addition, subtraction to deal with, so we just went into multiplication and division and dealt with that, right? Easy, peasy. Okay, let's do some more examples. That was number seven. Let's do number eight. Good, thank you. Cleaning the inside of my gaming console while watching you. How are you doing? Good, thank you. Eating cookies, doing mathematics, life is sweet. And cleaning the console, which console? Which console are you having to clean the console forever? Man, I think last time I cleaned the console was probably a Sega system or NES, NES probably, NES. Or N64, N64 is probably the last time I cleaned the console, N64 for sure, N64. So what if we had the following, right? X over two is equal to eight. Well, this means division, right? X divided by two is equal to eight. What's the opposite of division? Gaming computer, not my console. Oh, gaming computer, okay. My computer I cleaned like last year. Man, was it ever dirty? Yikes, I loaded up pictures. I would not try that, afraid of bronking it. X equals 16. Did you get it? Yeah, computer, you need to clean every now and then. So the opposite of division is multiplication. So we multiply this side by two, equal sign, line it up. And if you do something on one side, you got to do it to the other side. Eight times two is 16. Putin roaster got it. And when you're multiplying fractions, right, X over two times two, that's just two over one. Anything from the top can kill anything from the bottom. Two kills two, you got X left over. The other way you can think about this is this. X over two times two, this equals two X over two, and the twos kill each other, right? But I'm just killing the fractions, right? I'm breaking it, sorry. I'm French, so I sometimes make English with no worries. Bronking it, I want bronking it. That's a good word for breaking it too. So that makes sense, right? Easy? Well, let's do one that's a little bit more complicated. What if we had two X plus five is equal to eight? Huh? Well, are we solving or simplifying? Do we have any simplifying to do on this side? We can't combine two X and five. It just doesn't work, right? This doesn't have an X. And this has a variable. 1.5 you got? It is 1.5. Here's an eight, right? So if we're solving, there's no simplifying to do here. If we're solving, we do subtraction addition first. We can't add or subtract. There's nothing to add and subtract here.  If we're solving, we got an addition here we've got to deal with, right? So simplifying, we're going this way. Solving, we're going this way. So we're going to grab this guy and bring it over. So we're dealing with subtraction addition first. This becomes minus five. Eight minus five is three. Over here, we've got two X. Now what we've got to do is deal with the multiplication division. And we've got a multiplication. So divide by two, divide by two. So X is equal to three over two, which is 1.5 as Putnam Roaster says, right? Let's do a couple more, which were more complicated. Okay. That was number nine. Let's do number 10. Number 10. Let's go two X plus five minus three plus four X is equal to eight plus two. Much longer. I sort of start off simple and I kick things up to harders first. Mine CC. How were you doing? Welcome to our live stream. Putnext. Did you figure it out yet? So do the simplifying first. Either side four over three. Cool.  Make sure you're making sure we do it right. So you're going to simplify each side first. Brackets. So you're going to simplify this side, simplify that side. Line up your equal side. Brackets, exponents. No. We've got division multiplication. No. We've got addition subtractions. Yep. Eight plus two is 10. And then we got two X plus four X. Combine your like terms, right?  That becomes positive two. Right? So we took care of simplifying each side first. There's nothing else to simplify here. Nothing to simplify here. We go into solving. We go this way. Take care of addition subtraction first. Well, there's an addition here. Let's move it over. It becomes minus. Eight minus two is eight. Oh, sorry. 10 minus two is eight and we've got six X left left here. No more adding subtracting. Then we've got division multiplication. Divide this side by six. Divide this side by six. So X is equal to eight over six, but you can simplify that because two goes into both of them. So let me write down eight over six and let's do this over here. We've done a lot of videos on these. I haven't done it in this live stream in this order first because I wanted to get into the equal sign right away. But do this. Eight. Breakdown eight into prime factors. Two times four, two times two. Six. Breakdown six into prime factors. Two times three. So this equation is really eight over six is really two times two times two divided by two times three. And anything divided by itself, they kill each other. So this is a multiplication between all these. So two kills two. Nothing else simplifies. So two times two is four. And then the bottom, you got a three. So it's four over three. That's a long way of doing that. Once you do two or three of these, then you know the rest. The flow is it is. So four over three. We've got double confirmation. Mine C. So let's do more complicated. Let's add a bracket in there. Let's add a bracket in there. Two, three X minus one is equal to four plus seven. Okay. So what are we going to do? We're going to simplify first, right? Because we can. We can simplify this side. We can simplify this side. So we're going to deal with brackets first. Do we have brackets? Yes, we do. What does a number in front of brackets mean? It means the number in front multiplies. And did you do it already? Speedy Gonzales. So the two multiplies here and multiplies here. Line up your equal side. So two times three X is six X. Two times negative one is negative two. So we have no more brackets. No brackets there. Exponents. No division multiplication. No. We got addition, subtraction. Yep. Four plus seven is 11. Cool. We got nothing else. No simplifying to do. So we're going to solve for it. We're going to go into solving. So we finished the simplifying. We came all the way to here and now we're going to go into solving, right? So we came to simplifying and now we're going into solving. Okay. Solving, we're going to deal with addition and subtraction. Oh, we got a subtraction. Bring it over becomes addition. So you got 13 on this side. On this side, you got six X. Oh, Putin next. Did you do? Oh, you did it wrong at first. Oh, that's where speed gets here. Speed kills you. Right. So now we're going to get X by itself. This is six times X. So divide by six is 13 over six. And this doesn't simplify anymore. Right. Speed kills. Okay. Easy. Easy. Right. Undo what's being done to the X. What's being done to the X? It's being multiplied by three. One is being subtracted while the whole thing is being multiplied by two. Well, if we're going to undo what's being done to it, we have to go with solving, right? Or sorry, we did simplifying first. And then we're down to here. Undo what's being done. You do the solving. You get the chess. Right. Mind see, memorize multiplication table is the most difficult thing. Is it? Multiplication table should be easy to memorize because there's a pattern to it. You don't have to know the whole table. You just have to know half the table and that half the table you just generate. You generate enough, you know the words. Like, did you have to memorize the alphabet? Yeah. At some point, we memorized A, B, C, D, E, F, G, H, I, J, K, L, N, O, P, Q, R, S, D, U, V, W, X, Y, Z. Right. At some point, we had to memorize it. But once you end up using it a lot, it's just part of your dialogue. Right. It's difficult after 12. It's difficult. I don't memorize after 12. I just do. Well, more so, more so. Who came up with the ordering of alphabet? I don't know. My guess would be linguists. Right. My guess would be linguists. So let's do one more. Okay. What number was that? 10? 11? Let's do number 11. What are we going to add? Well, let's do this. I'm going to make it more difficult. We're going to take a huge step forward. Right. So number 11, 2. X minus 1 divided by 5 plus 3. Let's go minus, minus 3 times 2X plus 4 is equal to 4X minus 1. All of it divided by 2. And I'm doing this because I want to show you the rhythm of this. Right. Now, this is more difficult than what we should be able to do. I wouldn't usually kick it up to this level, but I want to just end this section with this and then get into the chat and see if we want to go anywhere else with this. Right. So there's a rhythm in this. Right. You could deal with the brackets first if you want. Or whenever I see this personally, when I see fractions, I multiply the whole equation by the common denominator, which I haven't shown you guys this in this math session, but we've done a lot of this stuff previously in the previous math videos we've done. Right. Multiply the whole equation by the common denominator. The common denominator is 10. What's the common denominator between 5 and 2? 10. So you multiply everything by 10. All the terms, there's three terms here. One term, two terms, three terms. So 10 multiplies this, multiplies this, multiplies this. Putnar. Did you get it? Did you get a twist? Let's check it out. So the reason we're going to multiply by 10 is because the denominator dies. The 10 kills the 2. Right. 2 goes into 10 five times 5 now multiplies the top. This side. Check and look at this thing. I'm going to do this thing on the side. So 4x minus 1 divided by 2 times 10. That's 10 over 1. 2 goes into 10 five times, so it's really just 5 multiplying this and that. So this becomes 20x minus 5. Okay. Twist. You say negative 119 over 76. Let's check it out. Over here, 10 multiplies this. It becomes 30 times 2x plus 4. The 10 doesn't multiply the inside because this is one term. It just multiplies what's on the outside of the bracket. Okay. Let me make this so it looks better. This one, 2 bracket x minus 1 times 5. The 5 knocks the 10 down to 2, so it's just 2 multiplying this. So this becomes 4 on the outside x minus 1. Now we've got more simplifying to do. We're going to deal with the brackets first. Line up your equals sign. 4 multiplies in, negative 30 multiplies in. So this is 4x minus 4 minus 60x minus 120. This is 20x minus 5. We're still in the simplifying phase. We're going to simplify each side first. Line up your equals sign. Combine your like terms. Okay. 4x minus 60x is negative 56x. Negative 4 minus 120 is negative 124. We've got 20x minus 5. Now when you're trying to solve for x, it means you need to get all the x's to one side and have the result being x equals something. Right? Well, we have x's on this side. We've got x's on this side and we've got a number on this side and a number on this side. So what I'm going to do is I'm going to grab this 20x. Bring it over. It becomes minus 20x. I'm going to grab this negative 124. Bring it over. It becomes plus 124. Line up your equals sign. Negative 56x minus 20x is negative 76x. Negative 76x. 124 minus 5 is 119. Right? Twist. You got it correct. Very good. My seat says I'm slow. That's okay. That's okay. This is not about speed, by the way. Right? That's one of the other reasons centralized education is so horrendous. They put people under the clock. Get it done. Get it done. Get it done fast. Well then, why are you speeding things up? The first thing they teach you when you learn how to drive is speed kills. Well, if speed is so dangerous that it kills, why aren't they forcing students to react rapidly? Crazy. Right? I do mine quite differently. Do you? I use fractions the whole way. Use fractions the whole way. Cool. I don't like memorizing or doing quickly. I prefer intuition. Yeah. You sacrifice accuracy for the sake of speed. You sacrifice accuracy for the sake of speed, which is, well, speed kills. Right? And then you divide by negative 76. You divide by negative 76. So x is equal to negative 119 over 76. And that is your answer. And honestly, gang, if you're doing mathematics in school, when you're doing problems, when you get to the end, circle your answer, your teacher will thank you for it. Your markers will thank you for it. That way they don't have to decipher your hyaloglyphics to find out what the answer is. They automatically see it and makes their job easier, make their job easier. And gang, thank you for the follows. Appreciate the support. That's basically sort of an intro to solving for x, dealing with the equal side.


on SSB SC that is modulation by filter method in communication system. So, these are the learning outcomes at end of this session students will be able to explain single side band modulation in electronic communication system. So, we will have the overview of an the single side band modulation which is also known as an SSB technique here ok. So, this is one form of an amplitude modulation only ok. So, where the carrier is completely suppressed with one of its side band that is lower or upper side band here. As we know that the information carried in side bands will be same in lower and upper side band ok. So, in some applications we do not require that much accuracy of sending the signal here. So, at that time we may use the single side band modulation where the carrier is going to be suppressed and one of its side band here ok. So, what are the advantages of using this SSB? Since due to the separation of an carrier and one of its side band here the power is saved and the reduces the transmission bandwidth by half that of an AM and DSB SC system here. As we know that the bandwidth required to transmit an AM signal is how much is 2 FM ok. The same thing is required for an DSB SC here, but in single side band it comes to be in half of that means we require only FM of bandwidth here ok. So, we will see the different types of techniques in single side band modulations. There are three types of modulation techniques that is the filter method, phase shift method and the third method is there. So, in this video we will completely define what is the filter method, how the single side band modulation is being generated here ok. So, now we will switch over to the demo. So, before starting to the filter method for the generation of an SSB technique here. So, currently we will see how much power is required to transmit an AM signal here. So, in AM signal total power was PC plus PLSB PUSB here. So, this was the total power required for that, but we have seen that two-third of power is required to transmit an carrier signal and only less amount of power is required to transmit an information signal here. That is why we are going to suppress the carrier signal in DSB SC. So, in DSB SC, so total power will be only PLSB plus PUSB here. So, we are going to save the power, but in total power in SSB is just PLSB or PUSB which side bands we are going to use to transmit the signal here. So, if you see here, so the power required will be m square by 4 into PC here ok. So, maximum power will be when m equals to 1 here, if you substitute m in equals to 1 in this equation. So, 1 by fourth of PC means 25 percent of the total power of the PC will be required to transmit an SSB. So, we have saved the power saving is much in SSB and bandwidth. So, if you want to calculate bandwidth, it will be only an FM here. We have said the half of the bandwidth which is required to transmit an the signal DSB SC and total signal that is an AM signal here ok. So, now there are three methods are there to generate for two generation of an SSB. So, first is the filter method, second one is the phase shift method, third one is third method. So, in this lecture we will focus on the filter methods here ok. So, for that we required one block diagram. So, we will see the first the block diagram for the filter method here ok. So, filter method as we know that SSB is a technique means we have to generate and one side band here. So, before start, so it will be balanced modulator that is BM ok. So, balanced modulator will be there. So, after that filter will be there and after that you required one balance mixer. So, we will see that why balance mixer is required here and crystal oscillator output ok. So, now for modulation, so you required one modulating signal and one carrier signal ok. So, you required one carrier signal here. So, now suppose this is X of t ok and this is omega c here. So, this is an input signal the X of t and omega c. So, in balance modulator you know that so the output of this balanced modulator will be LSB or USB by suppressing the carrier signal here. So, one of its side band. So, it will be omega c plus omega m or omega c minus omega m here. So, this will be the DSB SC signal here. So, DSB SC signal here. Now, if you are going to pass this through an filter here. So, you know that what is the meaning of an filter. The filter is nothing but to remove the unwanted frequencies from the input here that is known as an filter here. So, there are various types of filters used in electronic communication system such as low pass filter, high pass filter, band pass filter, band stop filter, band reject filter here ok. So, here we are going to make use of an band pass filter ok. So, which should have which should have high Q that is quality factor while designing the filters you should have this factor that is high Q flat pass band high selectivity means only those signals should be selected and send forward here. So, these are the properties of an filter it should have high Q flat pass band and high selectivity ok. So, this filter is also known as an SSB filter because it is used in SSB generation technique here. So, that is why it is known as an SSB filter here. So, whenever you are going to pass through this. So, if you are going to make use of an USB filter. So, the output will be that is omega c plus omega m means only USB will be an output.  So, after doing this. So, there is one more block that is balanced mixer and crystal oscillator ok. So, now if you see the input. So, the input is nothing but that is modulating signal as well as the carrier signal is there. So, what will happen? So, your output frequency is same as an input frequency, but we cannot transmit such type of signal directly in the channel here. So, that is why we have to convert that frequency ok. So, we have to boost that frequency boost frequency which is there at the output of filter here that is known as an up conversion of frequency. The boosting of that frequency is nothing but it is known as an up conversion here that is done in the balance mixer here. This is an crystal oscillator to increase the frequency ok. Then we are going to send as an output to the transmitter at the output transmitter here ok. Now, which type of filters can be used in this are there are three types of filters are there that is LC filter, mechanical filters and there is a crystal filters are there here. So, the LC filters it suppose the maximum frequency of 100 kilohertz ok, mechanical filters it suppose 500 kilohertz of frequencies and crystal oscillator which suppose 20 megahertz of frequencies here ok. So, this of filters are used here. So, where the applications of an SSBs are used. So, they are used in the navigation system that is the satellite communication ok. Most of the time the SSB techniques are used there here. So, we will revise once again for the filter method. So, the name as a name suggests here. So, we are going to make use of an filter here ok. So, first we have to suppress the carrier signal. So, that is why we are going to make use of an balance modulator that is the modulating signal as well as the carrier signal and filter at this output will be DSBSA signal which is pass through and filter here the band pass filter is used for the SSB generation. So, the factors which should filter have the high Q that is quality factors flat pass band high selectivity. So, after passing through and filter you will get an USB signal here because I have used the high pass filter like this for example. So, you will get an SSB output here. So, the output what is the frequency of an output of the filter is same as like an input. So, we cannot directly transmit those frequency. So, we have to boost that frequency that boosting of frequency is nothing, but it is known as an up conversion. So, this up conversion is done using a balance mixer and the crystal oscillator here and it is being transmitted here. And these are the filters used in this method that is LC filters, mechanical filters and crystal filters here. Thank you.