Now by the most worrisome development I see among zoomers in using computers is the fact that there are so many people who use sometimes exclusively cloud services to consume product to do computing and stuff like that what I mean is People no longer even have files on their own computers. They don't have their own documents. They don't have their own pictures They don't have their own music or movies. They don't have anything else. They use instead services like Google Drive Facebook Spotify Netflix all of these services through which they either put their data or they get data and Like it's we're getting to the point where people don't actually technically people don't really even have computers Okay, really they have small flash drives that are hooked up to a screen that have like based them basic system configuration like your color theme and your user data and then all of your actual data all of your stuff is Online Theoretically sometimes it's not even there sometimes. It's not even yours. Okay. Now. Why is this a problem now? I will say it's mostly a problem for reasons You don't quite see if you're if you're in this domain because you just think of it as being Oh, I can just go online and get all my stuff You don't realize all the things you could do with playing files on your computer You can copy them on a USB you can share them with friends You can do all this kind of stuff you can do you can use you know Unix commands to to do things programmatically to them you can reorganize them You can put them in the way you like all these kind of things that you can do Whereas people are now sort of plugged into these centralized systems. Okay, and that's a big problem First off because you know if you put your pictures on Facebook Facebook legally I don't I don't think it's officially they own your pictures, but they have legal rights to them Okay, and if anything goes wrong if there's any kind of comparable your data is compromised. It's just over It's how do you control you're utterly just having faith You know a lot of people will be very critical of these social media companies and they still Trust them with all of their data like that's their primary place to keep data Like the best thing you can do right now is just close your Facebook account They'll they even allow you to download an archive of all your stuff You don't even have to worry about it so you can actually have it on your own computer. Okay, so The thing that's annoying to me I mean also in terms of like internet architecture. You have to think about how crazy inefficient this System is this system of basically digital homelessness where you don't you or you don't even have property That's the thing like I've come I've said before people need to have their own internet property in terms of internet But you also need your own local digital property you need to be able to have your own files that seems like a very basic thing and You need that for reasons you don't even necessarily understand if you've just used cloud computing because you don't even realize the programs You can use your stuff with I mean just as an example a lot of normies out there use of course Netflix Okay, Netflix or Spotify to stream moves music and movies and of course first off This is a huge hugely inefficient on the internet because what happens is if you watch a movie five times You're downloading it five times. Okay, unless I Netflix probably has a cache of something You've just watched watched but in normal circumstances like the internet is like nowadays is mostly Netflix Netflix and YouTube and on YouTube's case at least you're watching different videos Usually unless you watch the same video over and over again But in Netflix a lot of times people are just re-downloading these massive gigabytes of movies same thing on Same kind of thing on Spotify But you know so people don't have the the actual files.  I can use them without the internet, okay? I literally when I go on a airplane ride, I can literally open my laptop and watch a movie Okay, you know just a cheap domestic flight where I don't have screens. I can just pull up my laptop I can watch I can watch Star Wars or something like that. Okay, alright anything anything that I happen to have Okay, so I have since I guess I was around 18 or so. I just whenever I watch a movie I download it I there's no reason to stream it on some shady site or something like that or use Netflix because once I have that file I can do whatever what I want with it. I can give it to people. I can do whatever Same thing is there are also programs like for example Cody Maybe I should do a video on that because it's sort of a normie friendly program that I actually sometimes use I'm ashamed to say that But only when people are over at my house Cody is a basically a program if you have a bunch of movie files on your computer in a directory You can say hey Cody look at this directory and what it does is it automatically grabs like The the images and information about that movie and it displays it in a thing that actually looks a lot like Netflix or one of those Services it's set for it's totally offline. You can use it, you know, whenever you want It's a very nice server Actually, you can even put in plugins that like download movies and stuff like that like stream them from like I don't know some kind of piracy service or something like that But anyway, so that's the thing that I find very frustrating about you other people's computer setups when I have to use them Or I have to give recommendations because a lot of people just don't think like they don't realize that like files are your your The things that you are most in control of you can't when you have like a Document on your computer even if you're using Microsoft Word or something that's much better than using something like Google Docs if you use Google Docs, you have to be connected to the internet sure their ways to sync it up but it's always some weird Google Docs file and and It's just one of those things you are dependent on this massive centralized structure to get a very basic level of computing done Okay I want to be able to if I'm in a city if I have my laptop I don't need I don't want to need internet 100% of the time I want the ability to take my laptop on a bus and do work without having to worry about being connected to the internet And so people will go it's crazy nowadays how people will go to extreme excuse me extreme lengths to Oh, I gotta oh, I gotta have my cell phone hotspot on and all this kind of stupid stuff when they don't need like if you just Had the files you wouldn't have to worry about it And even more than that. Okay. This is just me talking about sort of practical things. We're also getting to the point where like You're you don't have privacy.   Okay, you might even say oh, I trust Google Oh, man, their ghouls are greatest ally blah blah blah, okay But in the future things might change and that data of yours is permanently out there You don't know what they're doing with it. Okay, you you legitimately have no clue. It is a permanent liability That's what I think people need to realize. It's not so much You know, you're looking at these companies that you give data to and you're saying oh, they've done bad stuff So I don't trust them. It's I am giving them a massive opportunity to do bad stuff and have absolutely no recourse about it That's the issue.  Okay, it's much much nicer to just have these files on your computer You can do lots of magical stuff all the stuff that I talk about my videos when I'm like greppin stuff and setting stuff and and Looking at media info and arranging things in a particular order all of that stuff I can do because I do locally so the same thing with all my files even my email Okay email is actually something that I think a lot of people don't even realize but you should have all of your mail offline Okay, this is my firm belief e especially if you're using a service like Gmail or something like this when I have to use Gmail for work. I've had worked at jobs where I had a Gmail account what I always do is I use isync which is a nice command line program that can download mail for you It'll download mail if you give it your username password at your setup or whatever It will download mail to your computer it'll log into that iMap server and pull down your email so you can actually look at it offline and It removed even though you still have that email on your computer You can put it you know back it up if you want to you can I have all my emails from back when I was you know 16 Okay, that is not touching the internet anymore. Okay, so if Google servers get compromised if some other servers get compromised It's not an issue even if Google is snooping on you. You know whenever I have one of these accounts Online I only have like basically five emails online at a time before I go through them and get rid of them Then I save them offline to an archive So that's usually how I think and now now look at my situation I think maybe people won't realize this because maybe I should do a video on it, but on my computer right now Okay, or on hard drives or things that are encrypted. I have all my music and movies Okay, that I can watch whenever including some TV shows I'm actually deleting all the TV shows and movies that are like cringe and blue-billed But you know I have most of them. I have all my mail.  Okay, basically every computer. I don't know. It's just crazy how much space they have nowadays so Anyway, that's the thing I'm most worried about now is that people are moving to a state where All computers have to be used tethered to some online service It's a way of keeping you locked into Google or Apple or any of this kind of stuff and sure they offer conveniences Oh, wow Google Drive syncs my stuff so I can access it on multiple computers. Okay, that's cool So does the USB drive. There's lots of Free software that does that you can run locally on your own computer and it syncs up But you know sync thing I've done a video on you can learn how to use git if you're using text text files You can learn how to use our sync. There are many other there are things like one drive What's the other one that's like one drive Something some other kind of drive next next cloud something like I forget whatever But there are lots of services like that that are just like Google Drive that you can host you You basically still have your files, okay, and it's not in some goofy Google Drive format or something like that So that's just one thing and I'm just saying this like I'm not telling you to just massively change the way you do computing But just think about that when you start doing new things It's better to have things offline, but back in the day. I actually use this as cringe now I'm just sort of actually rambling but back in the day before I got red-pilled on anything technology related I literally used to be the guy who kept everything on Google Drive, okay? I just had everything I even kept a little offline store of them on my computers, you know I had it sync locally, but uh, yeah, that's that's not the same thing. It really just isn't Yeah, I was like really cringe back in the day Like they I don't know the reason I complain about all this kind of stuff in computers is mostly because I've done it when I When I was a dumb kid But anyway, so yeah, that's about it. Whatever. See you guys next time


This is quantum mechanics 7, angular momentum. Welcome. In video 6, we delved into the solutions of Schrodinger's equation for the hydrogen atom. These orbitals describe the probability of finding the electron at some point in space. The different states are indexed by three integers, and specifies the energy of the orbital, while different values of L and M correspond to different orbital structure and orientation. We looked at so-called SPD and F orbitals, and we saw evidence that the shapes of these have physically observable consequences, hence they seem to correspond to something, quote, real. Here, we want to see what physical significance, if any, the quantum numbers L and M have. Let's step back and look at the big picture for a moment. The foundation of quantum theory is Planck's relation. Energy equals Planck's constant times frequency. The energy of a quantum particle associated with a state that varies sinusoidally in time with frequency nu is E equals H nu. Wave particle duality is expressed by De Broglie's relation. Momentum equals Planck's constant over wavelength. The momentum of a quantum particle associated with a state that varies sinusoidally in space with wavelength lambda is P equals H over lambda. Since there are three dimensions of space, there are three components of momentum, X, Y, and Z. Let's think of a state of definite energy and momentum. It varies sinusoidally in space, and in order to vary sinusoidally in time, the entire wave has to be moving. Looking at the left side of the image, it's clear that the wave amplitude at a given point oscillates in time. We saw in video 5 on the Schrodinger equation that this sinusoidal variation has to have two parts, a real part, shown in red, and an imaginary part, shown in green. So the wave function would have the form cosine of kx minus omega t plus the imaginary unit i times sine of kx minus omega t. Here we've used the shorthand omega for 2 pi times frequency nu and k for 2 pi over wavelength lambda. To quickly review material from video 5, the slope of the wave function in time, which we did out by a curly D over a curly Dt, slope in time or rate of change in time, is omega times the sine minus i omega times the cosine. Since omega is 2 pi nu, multiplying by h over 2 pi, which remember we call h bar, reduces to h nu equals e. So h bar omega equals e. If we multiply our slope through by i h bar, we end up with e times the cosine plus i e times the sine. And the final result is that i h bar times the slope of the wave function in time equals the energy times the wave function. As we've seen, this is a key term in the Schrodinger equation. Now, looking at the slope in the x space coordinate, we follow a very similar process except we get a minus k factor in place of omega. h bar times k equals h over lambda, which is the momentum p. So for a state of definite x momentum, minus i h bar slope in x of the wave function produces the x momentum times the wave function. And we can do the same thing for the y and z coordinates. People began to think of quantum mechanics in terms of these so-called operators. We put a little hat over a symbol to denote an operator. So the energy operator e hat is i h bar times the slope in t. The x momentum operator p hat sub x is minus i h bar times the slope in x and so on. These are called operators because they need to operate on or be applied to a wave function to give meaningful results. If the system is in a state of definite energy, then the energy operator e hat applied to the wave function gives the energy value e times the wave function. Likewise, if the system is in a state of definite x momentum, then the x momentum operator p hat sub x applied to the wave function gives the x momentum value p sub x times the wave function. And in general, if the system is in a state of definite o where o is any physically observable property, then the operator o hat applied to the wave function gives the value of o times the wave function. An important aspect of quantum weirdness is that the system need not be in a state of definite o. This happens when the operator gives you anything other than a scaled version of the wave function. A classic example that we'll treat in a future video is shooting your cat in the observables whether the cat is alive or dead. In the macroscopic world, a spinning object tends to keep spinning. We say it has angular momentum. Provided no external forces act on the object, angular momentum is conserved. Imagining an electron in a circular bore type orbit, if we curl our right fingers around the orbit, our extended thumb will point in the direction of the angular momentum vector, which we denote by the letter L. The orientation of this arrow is perpendicular to the plane of the orbit. Its length represents the amount of angular momentum. Specifically, if a particle is on the x-axis, a distance x from the origin and is traveling in the y-direction with a linear momentum P y, then the angular momentum vector is in the z-direction with magnitude x P y. A particle on the y-axis, a distance y from the origin traveling in the minus x-direction with linear momentum minus P x will contribute minus y P x to this component of the angular momentum. The combination of these gives the z-component of angular momentum for a particle at any position with any linear momentum. We can likewise work out the angular momentum components along the x and y-axes. Now, applying the operator concept, we replace each momentum value by the corresponding momentum operator to obtain three angular momentum operators. These expressions are a bit involved, but they're simply step-by-step instructions for how to turn a mathematical crank and extract information from the wave function. The operator for the squared magnitude of angular momentum is the sum of the squares of the x, y, and z operators. Setting up these operators and turning the math crank, we find the following results. The hydrogen orbitals are states of definite angular momentum magnitude. L hat squared operating on an orbital wave function produces a number L squared times the wave function, where L squared equals quantum number lowercase L times L plus 1 times h bar squared. Taking the square root, we find that the magnitude of angular momentum is the square root of L times L plus 1 times h bar. The orbitals are also states of definite z-component of angular momentum. L hat z operating on an orbital wave function produces a number Lz times the wave function, where Lz equals the quantum number m times h bar. We now see the physical significance of the three quantum numbers n, l, and m. n determines the energy, l determines the magnitude of angular momentum, and m determines the z-component of angular momentum. Quantum mechanics doesn't appear to allow us to know the full angular momentum vector, only its length and one component. Let's try to visualize this. Imagine an electron following a classical orbit shown here in green. It seems that we're able to know the length of the red angular momentum vector in terms of the quantum number l and its projection on the z-axis in terms of the quantum number m. This could describe any angular momentum vector falling on the brown circle. Apparently there is some uncertainty about the orientation of the orbit. Say the quantum number l equals 2, this would be a so-called d orbital. The quantum number m can take on the values minus 2, minus 1, 0, 1, and 2. We know that the length of the angular momentum vector is the square root of 2 times 3, which is square root of 6, times h bar. The z-component is one of the five values shown. Say m is minus 2. Then the angular momentum vector could be anywhere on the brown circle. If m is minus 1, it could be anywhere on this next brown circle, and so on for all five values of m. Now, Schrödinger's equation doesn't describe the electron as a particle following a classical orbit, but instead gives us the probability for finding the electron throughout space. Despite the somewhat fuzzy picture of the electron, it seems that we're able to say that not only does it have a definite energy, but it has a definite angular momentum, too. We can also know one component of the angular momentum vector, but it seems that we can't know all three components. This is a surprising result, so let's take a look at this in some detail by considering how we might actually measure a component of angular momentum. Moving charges produce a magnetic field, which is the basis of the electromagnet. Suppose we have a loop of wire with a bunch of electrons moving around it. This will act more or less like a little bar magnet with north and south poles. Here we have a suspended permanent magnet aligned with Earth's magnetic field. Running current through a coil of wire generates a new magnetic field, which allows us to pull on the magnet. Does this process work at the atomic level with our fuzzy wave particle picture of the electron? Let's guess that it does work out the consequences and see if there's something to observe experimentally. Thinking of a classical orbit for visualization purposes and realizing that the electron is moving so fast, about 1% the speed of light, that it effectively blurs into a loop of current, it'll have an angular momentum vector. The orbiting electron will also essentially appear to form a tiny magnet parallel to the angular momentum vector. Suppose we generate a magnetic field in the laboratory. We put our atomic magnet inside the field.  Opposite poles attract so the dipole will align with the magnetic field just like the needle of a compass. If we twist the dipole, those attractive forces will be constantly trying to twist it back into alignment with the field. So we'll have to put energy into the system to change the orientation of the dipole. It seems plausible, therefore, that a magnetic field might cause orbitals with different dipole orientations that take on different energy levels. Even before the development of quantum mechanics, Peter Zeeman had won one of the first Nobel Prizes in physics for discovering the effect later named after him. Zeeman found that in the presence of a magnetic field, a single line of an atomic spectrum may split into an odd number of lines. Here we see an example. With no magnetic field, we observe three single spectral lines. In the presence of a magnetic field, the right line stays single, the middle line splits into three and the left line splits into five. This is precisely what we would expect to observe if an atomic dipole had five possible orientations with respect to the magnetic field, as would be the case for a d orbital with l equals two. For a p orbital with l equals one, there would be three orientations, hence three split energy levels. For an s orbital with l equals zero, no angular momentum, hence no magnetic dipole, there should be no splitting. Therefore, transitions from p to s orbitals should split into three distinct lines. The Zeeman effect shows how we can observe the distinct z components of angular momentum predicted by quantum mechanics. Now, why can't we determine all three components of angular momentum? Our theory tells us that we can know the magnitude of the angular momentum vector and its component along the z axis. Now, imagine we introduce a magnetic field in the z direction in order to use the Zeeman effect to measure the quantum number m and the z component of angular momentum. The magnetic field will try to twist the magnetic dipole to make it align with the field. But the electron orbit has both a magnetic dipole and an angular momentum. When you try to twist an object which has angular momentum, you observe the strange behavior of gyroscopic procession. The angular momentum vector moves around a circle perpendicular to the direction you're trying to twist it. This circle is precisely the circle of constant z component of angular momentum. Imagine our electron orbit is a spinning bicycle wheel. The magnetic field wants to make the axle point downward. But instead of doing this, the axle will undergo procession. Turning off the field gets rid of the twist and stops the procession. So, if gyroscopic procession occurs at the atomic level, we can see the dilemma it creates for us. Even in a classical world, the very act of using a magnetic field to measure the z component of L causes the x and y components of L to change. If you then measure the x component of L with a magnetic field along the x axis, the y and z components will change, and you'll have just negated your first measurement. You can only know one of the three components, Lx, Ly, or Lz.


Before we dive into the video about the Jorgensen's eye-popping fertilizer savings, we had some feedback from viewers that said, well what about timing? Is there some sort of transition or did they get these savings instantly? Brian Jorgensen wrote back and gave us this perspective. I have learned that organic matter in your soil is very important when it comes to lowering applied nutrients. My benchmark is three percent. If soils are less than three percent organic matter, they will require more nutrients to feed the system. When we take over new acres it often takes over five years to really get the system cranked and that allows us to lower our applied nutrients. Of course no-till diverse rotations and cover crops will enhance the process of improved soil health and nutrient efficiency. Now let's carry on with the video. In this third video on the Jorgensen landing cattle case study, Nick provides us with another key analysis. I did actually an interesting analysis that we I don't know that we had ever done before but we looked up so fertilized recommendations that you get from University based off of let's just say 160 bushel corn yield. So we figured out what it would cost us to put down the necessary fast necessary nitrogen and then we looked at what we actually do which is astronomically less. So chemical cost or excuse me, nutrient cost on our recommended system, university recommendations, we'd spend about a hundred dollars on nutrient per acre. Would that include your nitrogen? That's that is applied nitrogen and applied phosphorus. Okay. And this is on the margin so I'm not going to count all that we would do anyway. Exactly. So that we're looking at those two differences only. A hundred dollars an acre. Under our current system we spend all about 50. So there again we're looking at about a $50 savings in our system. So we take those two together, the reduced operations and the reduced nutrient that we're applying. You know we're saving somewhere between 75 and nearly a hundred dollars an acre. So then it starts you start to get into the marginal cost of the crop that we're raising. So we reduced our inputs pretty obviously by pretty stark numbers. So then the question comes is alright have you seen yield drag? Well the answer is no we haven't. For the nutrient case that I just discussed, the crop of corn that we raised under those under our application conditions, we raised a hundred and sixty-eight bushel corn. So we actually outdid the goal that the nutrient recommendations would have given us applying less than half of what they told us to. So we haven't seen yield drag. So what we've really done is we are the least cost producer. And for us that's imperative because we raise corn for feed, we raise most of our crops for feed and it allows us to put a cheaper feed into the room of our animals. But really for any operator, it's pretty hard to argue that lower cost is not better. So that's you know that's that's the rough models that we've come up with. You can start talking more about the complexities and really the intangibles that exist that even make the system more attractive to us. But those are the hard costs that we have studied and analyzed. I know what you're thinking. There's no way as you can keep that up for more than a year, maybe two maybe three years tops, right? Check out the next video in this series. It may blow your mind. See you soon.


Okay, so if you're on the market for a brand new tripod then this video is going to be very useful for you As you can see in front of me, I have four tripods here. They range from different prices So the cheapest one on the left side of me is 30 pounds and the most expensive one over here is 140 pounds Now if you're going to buy a tripod and you're just going to use it to put your camera on or your phone on and you're Going to leave it as stationary when you're doing your filming Then you may not need to look for any specific tripod. Any of these can do all of that very easily So if I was you, I would just go for the cheapest one if you're only going to use it for this purpose Now with those price differences as you can see on the screen They also come with various different reasons why they are these prices and they range from like the design and the features of the actual tripod and also the durability Diversity the versatility and the materials of it and I'm going to be going through one by one of each of these tripods and the different use Cases that they actually provide you. So let's go ahead and start off with the cheapest one I'm going to run through how it works some of the specifications around the features and how the design is and then what you can Basically use it for and hopefully this will give you a great guidance on which tripod is going to be the most convenient for you So let's get into it. Okay, so let's start off with the cheapest one This comes in at only 30 pounds. So it's very affordable This is called the SD tripod and this goes all the way up to 70 inches and the maximum payload for this is 4 kilograms only One of the purpose I would use this is simply just to place my camera on or even my phone if I have a phone mount And that's it. Let's just take a closer look at the design Starting off with the legs. These have clip legs and I actually prefer the clip ones more than The twist ones It's very quick and easy to do and you can reposition the height however you like at the top It has a release plate that comes off of a switch like that It has like a lock lever You just slot it out and then you can just put it back in and push it in there It has a quarter 20 inch screw just there at the top as well. So that's very universal now This doesn't have a ball head. So you can't get that fluids positioning however you like This has a linear motion So this will only go up and down vertically and horizontally left and right and you can rotate it 360 degrees so to tilt it upwards you just twist the handle and Then vertically you just position it up and down and it is very quick and easy. It's smooth and it works quite well To go horizontally you have this little circular knob just on the left-hand side you loosen this This would allow you to go left and right using the handle as well and again It's a very smooth motion to adjust the height of the actual head of the tripod There's a little valve at the back.  You can even just use your hand like so But the lever just gives you that precision of the exact height that you want this to be at Then you just push it down When you are at the position you want to keep it at and then you lock the valve at the back So this is a very simple portable very easy to carry tripod and For the most people that are just going to use this to put the camera on this is a very good option So if you do want to take this with you When you do close all of the legs You push this up. This actually has a little carry handle as well, which is quite nice And then you can take it with you just like this So this is the SD tripod and it's a very good value for money option for those that are on a budget Let's move on to the next one. Okay. Next is the National Geographic 62 inch tripod which has a max payload of six kilograms Again is very similar to the previous one. It does have those Clips for the adjustable legs as you can see very easy to use Like so and I'll make it a little bit taller There we go Not only that you can also adjust The width of each of the three legs on the tripod by this little switch just at the top of each leg as well So you just press it down and then you can pull the legs out to how wide you want the tripod to be Which would give it a little bit more stability if you do have this a little bit wider Then more narrower. It also has a monopod just in the middle that has an adjustable height So you just twist it and it comes up And then you have a very basic ball head just along the top as well It has a little lever that you twist then you can 360 degree in any direction move the ball head then you also have the quarter 20 inch release plate at the top as Standard as well with a little bubble meter just on the top on the left-hand side of the release plate So this is a very basic tripod and again, it's very good value for money And it is very affordable one use case that I see myself using this for in addition to just putting my camera or my phone On top of this is actually setting this up with a projector plate So I can then project my home movies at night using my theater system using this tripod and here's an example So I have my projector just placed on top of the plate Very easy and it's adjustable with the ball head as well to get the perfect angle to make sure it is straight Now I've not had any problems using this as a projector Tripod it can really handle the weight quite well It's very sturdy and this is a very good use case if you are looking for a Tripod to hold your projector and to get you the best experience for your home cinematic viewing Okay, so number three. This is the Andoa 78 inch overhead tripod and this comes in at 60 pounds The max payload on this is 8 kilograms. So it is heavy-duty So if you wanted to mount a lot of equipment on this, this should be able to handle it very well So looking at the quick design, let's start off the legs as usual. This one has the twisted legs So you have three different points to extend the legs out like so Let's make this a little bit bigger and Also as with the previous tripod you can make the width of each of the legs even wider You just need to pull out this little clip and then you can twist the legs higher up So that it's further out in terms of width and then you lock it back into place You can also extend this twice with the monopod in the middle So you have the large twisted knob just there first then you have the second smaller one inside that which makes it go even higher Then you also have the overhead arm that's attached to the top of this and you can angle this very easily Horizontally so you just twist the valve just there and then it goes horizontally like this And this is very great to get overhead shots But you can even extend the height of this even further With the next valve and this goes vertically up and down like so So this is going to be very convenient for you to capture those top-down shots Maybe if you're doing unboxing videos, this is going to be very useful And as with the previous ball head, it's exactly the same. You've got the release plate You've got the fluid ball motion in any direction You can twist this left and right as well to get the perfect angle So one thing I really use this more than anything for is to get a lot of top-down shots And here's an example. So here you can see I've added a little sandbag as well for a bit of counterweight on the clip just at the end on the overhead arm And I've angled it like this and using the ball head. I've positioned it vertically downwards So this is going to be very convenient to do an unboxing video of anything just on the desk itself So this is very heavy-duty and it can handle a lot of payloads at eight kilograms worth of weight for your camera If you've got a very large lens and then you have some microphone or a light attached to it It should be able to handle this very well So this is going to be convenient for those people that are looking not just to do Straight ahead standard filming of yourself, but also looking at the versatility of doing overhead shots So this tripod or any tripod that you get which has an overhead arm Is going to be very convenient for you Okay, and finally my favorite one. This is the knf concept 72 inch aluminium tripod This is 140 pounds and it does have a max payload of eight kilograms And you can see from just the size of the legs how heavy-duty this is actually going to be So let's just start off with the legs now There's two points that can help you extend this the valve at the top if you twist this This pulls out the two outermost parts of the aluminium legs and this will help you extend it a lot larger a lot taller Then you have the one at the bottom that brings out the single leg in the middle And then you can tighten that to whichever height it works for you So let me go ahead and just make this a little bit larger from all sides. So I'm going to unscrew each of these Bring it taller and you do have a bubble level meter just underneath the release plate there Once you're happy You tighten that Like so now you'll notice that the head itself is actually much larger than any of the previous tripods This can take a lot of weight on it and this is actually built for heavy-duty filming equipment in mind So let's just start off with the arm here now if I just Loosen it left You can reposition or just place it downwards when you don't want it to come in the way Whichever works for you just to tighten it like that When you're actually ready to then tilt this vertically you've got the little Valve just on the left and the fluid motion From minus 70 to plus 90 degrees In a linear vertical motion is very smooth and then you can tighten that And then the one just underneath next to it This will go in a 360 degree Horizontal fluid motion as well So you can get the perfect shots with just this fluid motion head here now, of course, if you want to Move it in like a 360 degree rotation of the actual ball underneath You can do that by just twisting the part right underneath in the middle of the tripod And as you see this actually can go in any direction If you just want to level it out and make it absolutely flat Then you do that you look at the Bubble meter just underneath And then you tighten it when you have it in the right position Now this does have a universal quarter 20 inch thread on the release plate But this also comes with the three eighth thread To have more of the larger equipments fit more comfortably on top of that release plate To take the release plate out you just loosen it from the right hand side You hold down this orange button and it slips out like that Then you place it back in And then you tighten it again Now this I can see myself using for a very specific purpose To get the best b-roll footage for all of my filming I'd like to use a motorized slider with my camera sitting on top So let's just take a look at that in action and how well this handles it And here we go I've got my top rig s60 attached to the release plate On the knf concept tripod I've got an additional ball head that I've just put on top of the motorized slider And then I have my camera on top of that. This handles it very well The slider itself does not move. It's so heavy duty that you can be sure no matter which angle you position this on You should be able to get the most smoothest footage For your filming You can even tilt this Vertically as well and at an angle So let's see how well that handles it because this slider is not going to be comfortable enough To be handled by any of the previous tripods and there you can see I've got it at the maximum angle that I can And the footage is going to be very smooth so The convenience of having such a heavy-duty tripod like this to be able to handle this level of equipment I think is very important And this is going to be one of my favorite tripods that I've purchased thus far So there we have it Those are all of the four tripods that I wanted to showcase and hopefully that video helped you understand Which one might be right for you now? I just really want to talk about branding for a little bit This one at the start the 30 pound one was by a brand called esti They no longer are selling this or pretty much any other tripod I think when you're looking for a brand of a tripod as well That is as equally important as the quality and actually features of the tripod itself Because this one I feel like just doesn't exist that much I'm also going to have to put an alternative link that's closely matched to this exact specification National Geographic, of course, that's a very large company They don't very much Specialized in specifically tripods and filming accessories as maybe some of the other brands But the quality is very great And I was really happy with the reviews that I've seen for this online as well Andoa, of course, they are also another big company, especially when it comes to filming accessories This specific tripod is no longer for sale on amazon and I couldn't find it anywhere So again, I'm going to have to provide an alternative link to the one that's closely matched to this overhead tripod Last but not least K&F Concept, Kent Faith, this is my favorite brand, especially when it comes to filming accessories They have a whole load of tripods and loads of other equipment that you're probably going to need Or you may have purchased a lot of their products in the past When you do type in tripod on amazon, for example, they will pop up more than any other brand For me personally, and I think this is their motto as well They are the first choice for photo and video accessories for filming This quality tripod here, I just feel like I've never bought any other tripod that's as good as this one And when I do browse the Kent Faith website, there's so many things that I just want to buy that I actually need for my filming But if you are interested in something like this, then even better, I have a 10% discount code for you Check it out in the description, it's trending reviews Make sure you do check out their website, you can use that discount code on pretty much Anything you'd like and for me, in a lot of my filming that I'm going to be doing I will be using this because I know I'm going to get the smoothest footage when I am using the handle with the fluid head When I use my motorized slider, this is just the all-round general purpose that I can use for everything That's it guys, so hopefully that was very useful If you did like this video, make sure to like it, make sure to subscribe I've got really cool videos coming out all the time and I will see you all at the next one.


The 18th annual conference of the Pharmaceutical Contract Management Group in Krakow on 9 September 2022 discussed the future of the clinical trial landscape. It was agreed that by 2050, if one works in clinical trials, they will be a data scientist. New technologies such as biologically engineered human cells and less reliance on animals will be used in pre-clinical modelling. Adaptive clinical development will be used to evaluate safety and efficacy of treatments. Patients may be involved in safety testing and reimbursement will be negotiated with regulators and pairs. This article was authored by Timothy C. Hardman, Rob Acheson, Richard Scafe, and others.


Hi, my name is Piotr, but I'm better known as Delovo. I live in Warsaw, Poland. My main job is creating webpages for companies. My YouTube adventure began 5 years ago, but only since last year I record new videos regularly. My channel, Delovo playing, as in the name, is dedicated to computer games, but not only. I like to visit different events, so you can also find video coverage of those events. It started with a short movie that was supposed to be a parody of a Polish song. At the moment, the video has nearly 5 million views and still growing. I record the games that mainly I like. I like shooters, sandbox and simulation games. For example, Counter-Strike GTA, maybe OMSI 2. You know, I always wanted to be an omnibus. What are your plans for the future? Haha, in the future, I'm going to record more videos. Target is at 2 videos per day. I'm playing with my friends, but always forget to ask about recording these games. So, my second target is creating videos with people, with my friends. As a Polish guy, got any interest in the Witcher series? Honestly, not yet. First thing, what I should do is read at least one book, and then I can play Witcher 3. Why? Because there's many relations between book and game. The only game in the Witcher series that I ever played is the Witcher Adventure game. You can check my playlist. Would you prefer more games in Polish? Or are you okay with most of them being in English? I am very pleased that game developers translate games into Polish more often, especially with full-out translations. But it doesn't matter to me in material, whatever the game is, in Polish or English. So what's your favorite game of all time? It's a really hard question. I like various games, but I think that number one is already GTA V. Why? Because I always like this series. And how do you say that in Polish? In Polish there's no official translations for this game, but we can tell, wielka kradziesz samochodów pięć, it sounds funny. We've all read the Poland ball comics, is everything really upside down in Poland? It's not really like that. I think that's, it's, I don't know how to say that in English. Polish stereotype? Hmm, okay, maybe only politics and government. Sometimes when I launch my TV and want to watch something, I see politics, politics and once more, politics. Well, thanks for watching my Polish buddy, you're a true pillar of our international community here at MGM. If you enjoyed this interview, make sure to check out his channel here. That's it for this week, Nate signing out.


Hello, I'm Dr. Rukthi Popaiway from KM Hospital Monomai. We'll be presenting paper on the topic, Validation of International Ovidian Tumor Analysis Model for Evaluation of Ovidian Legions with ultrasound and ultrapathological correlation under the guidance of Dr. Hemangini Thakraman. The aim of my study is to validate the auto model for evaluation of ovidian legions with ultrasound on colored Doppler and its ultrapathological correlation. In detection, the ovidian cancer is considered the most aggressive gynecological malignancy, constituting the sixth most common cancer occurring worldwide among the women in a developed country. At the time of diagnosis, the majority of the women have an advanced disease oving to its aggressive nature. Despite the surgeon and chemotherapy, the diagnosis of the women is poor, with five years' arrival rate less than 30%. Effective prevention and the early diagnosis have been shown to increase the survival rate up to 80 sites to 90%. The trans-adrenaline sonography can identify the changes in the ovidian sizes, structure, and thereby detect the early ovidian malignancy. The limiting factor in the characterization of the ovidian masses is the lack of standardized protocol in gynecological ultrasound. Hence, the standardized method for pre-operative assessment of the ovidian masses was defined by the AOTA. The International Ovidian Tumor Analysis Group was founded in 1999 by the term Timmerman, Billid Valentine, and the Tom Bourne. AOTA developed various models, the simple rules, mathematical models based on the logistical regression, the ADNECS, the assessment of a different neoplasis and ADNECSA models, the first protective multi-class model. The AOTA simple rule consists of the five ultrasound features of the benign tumor, that is the B features, and five ultrasound features of the malignant tumor, M features. The tumors are classified as the benign if only the B features are found, and the malignant only if the M features are found. If no features are observed, or both are observed, the simple rule cannot be classified as the benign on the malignant. This inconclusive visual can be classified using the subjective assessment by an experienced neurologist, or it can all be classified as the malignant to increase the sensitivity for the ovidian cancer. The ADNECS model was developed on 2005-2006 patients studied between the 1999 and 2007. This model can differentiate between the four subgroups of the malignant tumor, namely benign, borderline, stage one, stage two to four, or the metastatic. The study method, the study designed a single-fantral prospective of the clinical study for diagnostic activities of ovata models with the ultrasound and color Doppler. The population, the patient underwent the preoperative ultrasound for ovidian reason, participating in tertiary care hospital, period 12 months, number of patients 25, which were studied over a period of 12 months. Inflation criteria, the patient aged between the 18 to 90 years, patient crescented with the ADNECS model. For the bilateral ADNECS model, the mask with the most complex ultrasound features was included. If both the masses are similar ultrasound mass, which is the largest mass, or the one with the most accessible was included. Exclusion criteria, diagnosed at the time of examination, or if you look for transfigural ultrasonography, declining participation, patient with a previous bilateral oeparctoma, non-availability of a CA-125 report. The study procedure, the study was transduced over the 12 months after the approval of the IEP. Epidemiological factors, such as the eels, were included. The necessary history on the investigations reports were noted. The relevant laboratory investigations include CA-125 levels, and the post-operative list of pathological reports. The data collection and the ultrason examination were done in the USG department using a Samsung ultrasound machine in a grayscale, and the color Doppler mode using a curvilinear and the transfigural proof. References, the reference standard was the pathological diagnosis of the mass after the surgical infection. Data analysis, the data was collected and compiled using the microscope Excel 2019 and entered into SKS's way version 2, 26.0. And the p-value less than 0.05 was taken as the level of significance. The representative cases, case 1, this is the case of 35-year-old women which present a width at a level mark and CA-125 levels for the 50 international units per mm. The above lesions shows the maximum diameter of the lesion was 91 mm. The lesion is a multi-local with a less than 10 local. There is a presence of a solid compared with the maximum diameter of less than 20 mm and there is no acoustic shadow and no acytos. However, there is a minimal curve. The classification of the baggy, the simple rule, is implicitly as this. There is fast. This person, staged by the next model, is 24.2. The benign lesion cutoff was taken as 29.3,000. And the anthropological diagnosis of this lesion was the benign, that is the menopause study. Case 2, of the 48-year-old women who presented the bilateral adnexil ovarian masses, however, the largest lesion on the right ovary was selected for the study and the CA-125 levels were raised on, was 119 international units per mm. This lesion was showing a maximum diameter of the 94 mm and it was a solid lesion with the acytos and high flow on the Doppler. The classification by the simple rule is the malignant lesion. A risk percentage by the adnex is a 98.8 and the anthropological correlation was the malignant lesion. With the metastatic ovarian carcinoma. Case 3, the 35-year-old women presented with the left ovarian lesion, CA-125 was 1998 international units per mm. This lesion is of the size 83 mm. It is a unilocalare lesion, presence of the solid component with a maximum diameter was the 98.8 mm, no acytos, no flow on the Doppler. The classification by the simple rule is benign. This percentage by the adnex model is 10.3% and the anthropological diagnosis is the benign Case 4, of a 32-year-old woman, CA-125 level was 60. The maximum diameter of the lesion was 65 mm. Multilocalare lesion with a less than 10 locus, no solid component presence of the acoustic shadowing, no acytos, minimal flow on the Doppler. The classification by the simple rule is benign lesion. This percentage by the adnex model was 4.1% and his anthropological diagnosis was the benign that is the Schumauer use. This is by taking into consideration the characteristic lesion. The simple rules of the AUTA were applied. 15 lesions were the classified as the benign. 5% were malignant and the 5% were the instantial lesion. On HP reports the four subjects reported having the malignancy. Among this percentage of the benign lesion was 11.4 and the malignant lesion was 18.4. The unfair data showed the difference in the mean between these two was statistically significant. The ROC is interpreted by the area undercurve. The area undercurve ranges from the 0 to 1 higher the AUT higher the prediction. This percentage using adnex model with the cutoff of continent is 0.98 which is a very good predictor of the malignant lesion. Result by taking into consideration the characteristics of the discussion by applying the simple rules the sensitivity specificity positive predictive and negative predictive values were 100% 95% 80% and 100% respectively. That is the high sensitivity and the negative predictive values are particularly helpful in detecting the malignancy and I separately. Furthermore, the adnex model can separate the stage 2 to 4 ovarian samples on this other tumor. Limitations of the study were the limited sample size, limited availability of C1 and 25 did not take count of interobservant variability. Hence, the ultrasound is an easily available modality with the low cost of probability compared to the CT and MRI. AUT model can be helpful in differentiating specificity good specificity. Simple rules are simple to apply even by the non-expert examiner with the excellent sensitivity and the adnex model covers this percentage of the malignancy with the better specificity. Thank you.