The patent ductus arteriosus is an example of an acyanotic heart defect. You'll recall from embryology that the ductus arteriosus is a shunt in fetal circulation from the pulmonary artery to the aorta. You'll see over here on the right side an example of a patent ductus arteriosus. Again, it's connecting the pulmonary artery and the aorta here. This is an acyanotic heart defect again because in a newborn the aorta is a much higher pressure vessel compared to the pulmonary artery so blood will flow down the pressure gradient from the aorta into the pulmonary artery here. Again, blood in the aorta is already oxygenated and oxygenated blood is still flowing into systemic circulation so there shouldn't be a cyanosis at presentation. We expect these defects to close usually within 24 hours of delivery and if they don't that's when we call them a patent ductus arteriosus. High yield association here is with congenital rubella so mothers that are infected with rubella during pregnancy they run the risk of having a child with a patent ductus arteriosus as well as some of the other features of congenital rubella syndrome. These patients on physical exam will have a continuous machine like murmur and what does continuous mean? That means it's a murmur that's present in both systole and diastole so if you ever have a question stem about a murmur present in both systole and diastole or you have a question where you have to put on the headphones and listen to a murmur and you hear it in both systole and diastole chances are it's caused by a PDA. Another physiology point you should be aware of here is the effect of a PDA on diastolic blood pressure. There will actually be a drop in the diastolic blood pressure in the setting of a PDA because again blood is being pulled away from the aorta into the pulmonary artery and it happens that happens preferentially during diastole and as a result of this decreased diastolic blood pressure will have an increased pulse pressure as well. And again we'll evaluate these patients with echo and it's particularly important in a patent ductus arteriosus patient because if the patient has another comorbid structural heart defect for example a transition of the great vessels or tetralgia flow that we'll mention in another video they might be dependent on the PDA to oxygenate their blood that may be the only connection between the right side and the left side of the heart so if you assume that it needs to be closed you may cut off the patient's only access to their pulmonary circulation and that brings us to the treatment so how do we treat these patients if we are confident that there's no comorbid structural heart defect we can treat these patients with indomethicin which is the NSAID and that should close the patent ductus arteriosus and if we note another heart defect that requires the PDA to be open we can maintain that PDA keep it open by administering prostaglandin E1 and a kind of pharmacology tie in here is something that could help you remember the treatment here so NSAIDs like indomethicin block the the production of prostaglandins thus they would close the patent ductus arteriosus whereas prostaglandins themselves will keep it open


I'm going to talk for a minute today about the idea of putting down a book that you're not enjoying. For a lot of people that seems to be a really unimaginable idea, which is surprising to me. I've mentioned it a couple of times in the course of my videos over the last two years, and each time I've had people tell me that it was an amazing thing for them to hear, that it was a shocking thing for them to hear, and that it was actually a relief. They felt a sense of relief and a sense of release, just hearing somebody say, you can stop reading a book. This is not a new idea, and it's not really a radical idea, but for some reason, for a lot of book readers, there's a sense of obligation to finish a book, there's a sense of duty almost to read a book, and there's a sense of guilt associated with not finishing a book, even when you're really not enjoying it. There's a feeling that a dedicated reader has to suffer through a bad reading experience, and I don't know why. The Polish author Stanislaw Slem, now I pronounce his name Stanislaw when I mentioned him in the past, and I've heard everyone else pronounce it that way, and just recently, while I was listening to a biology lecture of all things, I heard the lecturer pronounce his name Stanislaw, and I was like, of course, it's pronounced Stanislaw. It's a Polish name, Stanislaw Slem. Anyway, he said, I don't know what the exact quote is, but he said something about putting down a book when you're not enjoying it, you're not obligated to finish it, you're supposed to be enjoying it, but if you're not enjoying it, just put down the book and forget about it. Somehow his name became attached to the idea of quitting a book, and some people call it lemming a book because of that. I first heard that idea from Marie Sendak, the children's book author. The guy who wrote Where the Wild Things Are and In the Night Kitchen and Really Rosie. I may have to do a special about him someday, he was a genius. Back in the early 90s, I saw a PBS documentary about him. It was called Marie Sendak and All his Wild Things. I made the video on VHS, I've had it for all these decades, but of course right now I can't find it. Anyway, he was talking about the art of writing books for children and he pointed out that when you're writing for children, you have to keep them entertained on every page. It's vitally important that you keep them entertained on every page, every line of the book because an adult, the way he put it was, an adult will finish reading a book out of a sense of obligation. But a child who is not enjoying a book will drop it on the floor. They'll just drop it and walk away from it and say, I don't like that book and they won't think about it again, ever. And I remember thinking to myself when I heard that, that that's the attitude that I'm going to have. It's the attitude that all of us should have. We should have that childlike attitude that we don't have any obligation to finish a book or a movie or a TV show or anything for that matter that we're not enjoying. Because the whole point of reading a book or seeing a movie or watching a TV show is to enjoy it. And if the creators, if the author of this book is not entertaining us, we don't have any obligation to the author. We don't have any obligation to the characters in the book. They're not real. They're just letters on paper. We don't have any obligation to ourselves to find out what happens. Because to this point, keep this in mind, when you're reading a book and you're not being entertained or really not enjoying it, keep in mind that the rest of the book is going to be the same. It's not going to get better. The rest of the book was written by the same author who is not entertaining you up to this point. It's not going to get better. There's been a number of times throughout the course of all these reviews that I've done when I reviewed a book that I haven't finished. And I've told you why I haven't finished it. I've had visitors thank me for doing that very thing. And again, like I said before, I've had visitors thank me just for introducing them to the idea of deliberately putting down a book and not finishing it. It's not me saying it to you or to anyone else that's important. It's the idea of anyone saying it. Apparently, this is not something that people have thought of before. It's not something that they've heard before. Repeat it. When you've heard it from me, I've heard it from someone else. Repeat it. Tell it to people. You don't have to finish a book. Isn't it amazing that someone has to say that? The misery that we create for ourselves, the boxes that we put ourselves in, it's entirely self-inflicted. It's entirely self-appointed. And we can switch it off. You can just turn it off. There are so many other books for you to read. If you're not enjoying a book, you're wasting your time. Really. And there are plenty of other books for you to read, books that are waiting for you to enjoy them, and other things for you to do as well besides reading. Go do those.   There's a book I'm reading right now that is one of the most unpleasant things I've ever read. It's an excellent book, though. The reason I'm having so much trouble with it is not because it's a bad book, but the subject matter is really upsetting. I want to finish it because it's an excellent book. So this is a different situation. A book that's unpleasant is not the same thing as a book that's bad. The same thing with movies. So that's it for now. If you've got a book you're reading right now, I hope you're enjoying it. If you're not, put it down and don't go back to it. Okay, see you later.


So I've been thinking about advocacy a lot lately from a Christian theological perspective, particularly a pneumatological perspective, and the Gospel of John chapter 14 says the Holy Spirit is the advocate, which means that the Holy Spirit is called to our side to aid. The Holy Spirit is our intercessor, our defender. The Holy Spirit is the one that pleads on our behalf. A Christian theology of advocacy begins when one is empowered by the Holy Spirit to stand beside and intercede and defend on behalf of the other. Intercession in relation to advocacy requires urgency. Persistence and insistence are the work of the Holy Spirit. And if the Holy Spirit is divine breath, then the Holy Spirit breathes a new reality into existence through her advocacy.


our lives. Welcome. This is the Education Committee and the Vermont House of Representatives on April 16th and we are continuing our discussion on S16 and this is related to what it will eventually be titled a task force on equitable and inclusive school environments and we don't have our Ledge Council in at the moment but I thought there's been quite a bit of work that's been done by Representative Brady and I thought we would walk through these sections and see if there's anything further that we need to discuss in this. I know there was just a question about finding so Representative Brady or Jesse could you bring that up? Thanks, Jesse. 16 and this is draft 3.1 so let's go through this so let's just take a look at the findings did we end up with some Vermont statistics on findings? We don't I already I saw a catch up above I'll get to Jim that if we've renamed the task force we have to rename line 3 and act relating to. Yes that gets I think that gets done at the bottom because we can't do that until I think he there's a way of doing that. So the findings are not okay yeah most of these findings are still what was in it coming over from the Senate most of them are national all of them are national sorry and on page two it's highlighted there's a new finding added that was the suggestion from Rev James. As I remember didn't didn't Wendy Geller have some recommendations on findings? Nothing that would add any Vermont specifics their their stuff it gets we're about to get to their recommendations on the next page. Okay so Representative Austin did you have? Yes I'm I you know I was just thinking about last night I mean I I just would like just Vermont statistics on explosions and well what about what about line 7a there Serita? I'm sorry what is it? According to the AOE's report on exclusionary discipline from 2017 which I think is the most recent one we have 3600. I'm sorry I'm the wrong page hold on one second line 7. Yep I see it yeah page 3 bridging to bridging from page two to three. Would it be possible just to get the did you look at the data I mean just a percent of you know explosions and suspensions in Vermont and then how many were let's just say BIPOC students we don't need you know we don't need to know just in general in the whole state. There is a summary of finding I'm looking in the exclusionary discipline report the agency education finds that students who are non-calcation participating in free and reduced lunch programs that section 504 IEP's male or English languages are overrepresented in terms of numbers who experience explosion and the number of incidents including results in inclusion exclusion. Oh I like that you want to just add that should we add that as a finding? Yeah I think that's good. Boy how'd you find that so fast? Because I actually printed off the document. Sorry could we scroll down because it what's coming up next? Yeah it's oh yeah never mind it's there it's clearly losing it. Yeah to me the stats we're looking for are already in there. Yeah we're losing it here yeah okay I mean it's on page 3B exactly what you just said keep. Yeah they're kind of anecdotal I it's not a big deal there it is. Honestly I think it's going to be challenging and slow us down I'll be frank. Okay yeah and I think the point later in the bill is that we need to get this data. Yeah I think we we have it you know we could I think it would be one phone call but it's fine it's fine if you have a if you can you know put give us a specific language suggestion. Okay let me um I think I was you know if I talk to uh either Wendy Geller or yeah um yep. I would talk to Wendy more than just yeah just thank you. Yep okay so so B covers what we just said thank you. And now here's where we get into some of the big changes from AOE starting with eight that are highlighted this is where they had took pretty big issue with how lack of data was described and I will say in our side meeting they were pretty compelling that a lot of data does exist and so this is the language we landed on it can be hard to find. They certainly want to emphasize the privacy laws which does complicate getting a lot of this data. Yep this is good. So I I felt comfortable with it. I just had one uh letter C line 19 um seemed a bit unnecessary. Which uh which part Peter uh page 319 where it says you know even one available you you've got to be careful. Oh okay would you take out take out C entirely or just that phrase even one available? Uh no I take out the whole thing it just seemed a little preachy. Yeah you know but there's some truth to it we can misuse data like nobody's business. Yeah it just I don't know it seemed it seemed like not a finding but a scolding. I'm not I just a suggestion I'm not married to it people want to keep it in I certainly don't feel terribly strongly. Let me just take a quick look at that. Yeah what do we think? What do we think? Who thinks we should get rid of it?  All right we've got two we've got three. Who thinks it should stay? And some of us are undecided. Aaron you have to be the type. Let's let's leave it it does no harm. That's what I was going to say it doesn't hurt anything. Okay so then going on to page four that's the last that last highlighted pieces there reworked language around findings and data. I'm not sure it really accomplished as much but it was did did this language come from Dr. Geller? Yeah and and Jess intended yeah yeah that's fine it's from AOE exactly okay okay okay so then we get to the task force nothing in the creation has changed we've updated membership again so now the school which one superintendents are back in is that right good yep they're back in G we've we've swapped out which restorative justice group so this is the one so um Lindsay confirms this this is she's uh on the leadership of the Vermont restorative collaborative so where there was concern about including up for learning they're covered yep thank you yep and then we added for the students on page six if you keep going on oh that they're appointed by the VPA in consultation with up for learning that's great okay so then um line 11 but again was an AOE suggestion essentially saying let's use the data we do have even if it's hard for a lot of people to find which seemed reasonable and now we're walking through there what the task force has to do so if we keep going on to page seven there's a highlight on page seven this is um Sarita this was your suggestion here of taking out social and emotional so that we're just thinking that these are related to students needs holistically I'm not saying it's just social and emotional uh e now I'm trying to think where this came from what if I best did this come from our testimony I mean it seems to the testimony we took from up for learning in the students yes yes and department of health right is that was that one there yes yes that was in department of mental health which I love their suggestion here that's right uh the line 17 is a critical one here that a lot of uh the work there were issues AOE had issues with what data would be available and FERPA and privacy laws so that's sort of a blanket statement to get at everything below it that there will be restrictions um and if we keep going down to the next page or page eight G was a sort of compromise and language particularly from Dr. Geller on uh she's got such a deep understanding of data and using it and using it well and what they have and trying to capture uh the sort of quality of you know it's not just a matter of having it but but knowing why there even why a secretary needs to collect why kid is out even you know she had a lot of I think helpful things to say about that J. Nichols might have as well but this is part of of what the task force is hopefully really doing that we need to get better garbage in garbage out that we you know that even if we have a lot of data it isn't necessarily of the best quality or not everybody in the data stream might know why they're doing what they're doing so that that's a nod to try to capture that okay going on to page nine again they're going to be disaggregating the data by a whole bunch of measures again this is just the work of the task force and a lot of disaggregation bringing us all the way to page 11 where we have changed the dates so that we've given them till January for the initial report and March for the final uh that must have been a good catch for Jim there that just getting rid of the task force when once we have to find out I'm just gonna ask him if maybe that should actually go until you know June 30th just to make sure yeah yeah I'm not sure that was a he must have caught that I didn't yeah let's let's just let's just ask him about that I'm just thinking that they get the report and then they're disbanded maybe they're going to give us the report maybe we need a little bit need a little bit longer right or we may have questions or yeah yeah yeah so let's let's just okay flag that for Jim okay uh for the appropriation that must have been his catch as well as I assume is updated because of membership yeah okay um then getting into section four uh just ensuring that the task force is going to get good cooperation and help and a substantial training from AOE on what already exists and where and how to access it the training I would like to take in as well yeah and we might that for that something to do with that next in depending on what happens for the rest of this year yeah um I mean I think the thinking is then hopefully they're also AOE does seem open to that they've done a lot of work on their reporting side and the software they use in the interface but that it's not perfect and so the task force will be deep in it may have recommendations for them of how to things they may want to change or have the I think there's an I know there's an outside vendor for the snapshot and some of that stuff so it gets of course into cost then but all right onto page 13 um D is so we are not touching independent schools the decision was was too messy and and extra messy because therapeutic schools are independent schools and are often dealing with you know some of the most complicated cases so and then this language poses an imminent threat of harm or danger was from Department of Mental Health um from from Ted and Department of Mental Health has suggested language on that and that's everything it stands now next work so the only thing that I have right now is that question about whether the the task force needs a little bit more time after their report and there's oh yeah I think uh Rupri has uh she she she should be a lawyer for sure but I always kind of wanted to so that I'm trying it out but I don't know neither an education just a future secretary so I just wanted the questions I know I had one were there other questions and I'm forgetting where we were with that I wrote it down a couple of things Jim so you got that on page 11 the end date I just jumped in okay um the two things then that we flag for possible changes so far are on page three we would like oh never mind we agreed not to take that out right sorry committee yep okay scratch that so that one's fine sorry page 11 the end date of the committee it's immediate right now after we get the report and we're worried that we may need to hear from them beyond that on page 11 yeah it's pretty typical that we put the next day in as is that okay but it's fine I can move that out how far out would you like a month a month I was thinking June 30th but but I don't if this is more typical to just end it on that day um is that you said generally what happens for the task force the next day it ends this way I've seen it yep it doesn't mean we can't talk to them I was gonna say it doesn't preclude them from coming in to testify right yeah have there you know if there've been any situations where they needed to haul them back in after they disbanded um no but moving the day's no problem either I mean it's it's whatever you want to do but an idea that's fueler yeah sorry I will say this is quite a group we're compiling yeah you know you've got a lot of expertise on that task force yeah uh some of the legislative changes that may come out of it might be thorny and um I don't much extend them I mean we're clearly going to need to hear from them after the 15th but that doesn't necessarily mean they can't just exist yeah April 15th if they need it you don't need it they don't do it I don't know does that change any money so I'm here April 15th yeah and that's not going to change any money right no um whether any others than other than than those points represented Brady that's all I have we have incorporated a lot of feedback from the field not every single thing but I will say this is a pretty well you know that we've represented a lot of interest taken included things from a lot of testimony right representative Austin yeah just I know this isn't going to happen but just philosophically I would have more students um on the task force and I know that's not going to happen because we're not adding anybody but I just um just want to say that just to kind of bring that forward how many students do we have two we have two two um bear in mind that uh this task force can call people into testify so they could have up for learning folks come in they could have a whole group come in and talk to them yeah um it's it's a matter of of yes no I think I hear you though fortunately we do know that there are groups that are meeting elsewhere we do know that up for learning for example has students that are our meeting so it's not like there aren't any meetings going on and they might do well to organize a presentation for the tax task force but I hear you on the need to keep our students involved um anything else a possibility is we could vote this out today which would mean it would sit on the calendar it would be on notice on Tuesday presented on Wednesday if that wait a minute this has to go to appropriations doesn't it Jim Daymarade there's a little bit of money in there right did we address this one before or yes so it would go to appropriations all six thousand seven hundred and fifty dollars of it which is currently on the general fund I believe right yeah so uh representative Brady would you be comfortable with us voting this out today and then it would mean that you'd probably be going off to talk to appropriations on on Tuesday or Wednesday okay and then probably a floor floor presentation probably the earliest would be Wednesday Wednesday of next week yeah okay um committee are you are you ready to to vote on this one this is really nice work I'm really pleased with this work so I would entertain a motion to approve um that they change rep probably jack 4.1 4.1 with that that one change correct correct yeah with one change I'll move that we approve version 4.1 of s 16 second or is it 1.16 and representative erison seconds it um discussion seeing none the clerk shall commence to call the roll representative conlon yes representative erison yes representative austin yes representative Brady yes representative brown yes representative hooper this is representative hooper of orange county I vote yes representative james yes representative tooth yes representative williams yes representative Coupoli. Yes. Chair Webb. Yes. 1100. Can we do it again? I'm sorry, I was getting my, so that was draft 4.1, right? Yes. Okay. And representative Brady, you will be the reporter. Okay. Yeah. This will be a good one. You won't believe what will happen when we do. Okay. Okay. Can you help me with the list of. Witnesses. Yeah. Of course. Thank you. Yeah.


The Adventures of Sam Spade, Detective. To Detective Lieutenant Dundee, homicide details, San Francisco police from Samuel Spade, license number 176, subject, the Betrayal in Bumpers Hell. The raw bone pulled from the border country. He was a stranger to Bumpers Hell, but he was no stranger to trouble. He jogged his pinto down the narrow main street, not liking what he saw, and rained up in front of the sheriff's office. He dismounted and slapped the trail dust off his Levi's. Then he hitched up his gun belt and handled inside. He looked at the heavy-shouldered, blue-jowled man behind the desk and he didn't like what he saw. Neither did the sheriff, Lance Blaggett. State your business... Now, I can do it better than that. State your business and get out, he snarled. Red smiled thinly and brawled that, I'm looking for my brother. And what be your name outside of red? Here, I can do that better than that. And what be your name outside of red? Red gillus' hands slid toward one of his six shooters, assignably as a son coming up over the beauty. Gillus, he sneered. Red gillus from the Tonto Rim. That's pretty good. The sheriff's muscles tightened like steel springs and pulled them erect. Ain't no Tonto Rimmer welcome here abouts in bumper's hell. He cursed. That was real good. And then the slap of four hands on leather was followed by the simultaneous roar of four six guns. Hey, wait a minute, the sheriff... I'm not in there. Well, who is it? The sheriff is just... Exciting part. Mr. Fade, now see here, I won't take no for an answer. It wouldn't be neighborly. What is it, Mrs. Kelsey? Whatever you mind, come along. What are you up to here anyway? Oh, me? Oh, nothing. I'm just relaxing with an apple and a good book, that's all. I don't see no apple, and the only reason matter I see is some western trash. Trash? Now, come on, there's trouble on the third floor. Well, there's trouble in bumper's hell. Don't you swear at me. I know my duty, and I know your duty. Now, come on!  That dandy's to help me is how it started. Effie had just read a book called Harder Relax, and it said there that western stories were relaxing, and that's how I happened to be at home at 10 p.m., writing herd and a copy of sheriff and outlaw, rip-roaring adventures of the Old West.  I left Red Gillis and the sheriff face to face and vice versa, eyes flashing and guns ablaze, and followed her meekly up to the third floor. Show me, put your wig back on. I'll see what I can do. Oh, you stinker, Joe Donegan, who was just left. And you can tell him as from me, but I'm extremely unimpressed with his cheap threats to rub me out. Which I care to. That's pretty good singing. Well, you better tell him that yourself. I don't imagine I'll be singing. You won't. Wait a minute, who are you anyway? Just another tenant. I, uh, live downstairs. Now I recall whom you are. You are that shameless, which lives on the second floor. Uh, Shamus, we call it in the radio. Shamus, would you care to come in and discuss a certain matter? Well, uh, thanks another time. I gotta get back to bumper's hell. Whoever she is, let her cool her heels for a few moments.  This is a urgent matter, which I would like to hash over right now and without further delay. Well, I, uh... May I invite you in for a straight slug? Well, uh, okay, but just one. In a glass. All right, make yourself comfy. That's up to the lipstick mark. Here you are. Well, now to make a long story short, Mrs. Fade, my name is Rose Mary Fell, which remains my stage name, not withstanding the circumstance. But I am legally married to that barnacle which has just dusted this joint. Now, being as you are in the detective business... Now, wait a minute. I don't kindly permit me to finish, honey. Sorry, sweetheart. I'm not the type to jaw about my troubles just to pass the time of day. I'm sure you are. I am an actress. I knew that. And although I'm low in funds, due to being between jobs right now, on account of that knot I had making a scene in the last joint at which I worked, just to show you how the breaks fall, Mrs. Fade, Belita Wilkerson, who just happens to be about the biggest talent agent in this city if you have the time, I'm impressed. phoned me on the telephone and arranged an audition. She also advanced to be the sum of 100 clams. 100. Which I will pay you to put the bee on that dog, Joe Donaghan, the rat. Which is he? What do you mean, put the bee on him? Listen, Sam, that grifter has got a record as long as my arm. And what I have got on him is longer than his arm. Please. In short, I should like him thrown into the can so that I can feel safe to sing on him. Look, Rosemary, so you had a fight with Joe. You saw her. You want him to pay.   Sam, listen to me. That knuckle duster remains at large. I will be feeling no pain. Now, I know that from my flamboyant manner, you'd never guess it. But that is only the actress in me. In actuality, that flea intends to do me in. Oh, now, come, Rosemary. What? You disagreed? Well, now, really, Rosemary.  Rosemary. I am drinking my... Pour that back in the bottle. Don, put it back in the bottle. Well, I'll be going now. Only trying to be neighborly. Well, back to Bumpus Hell. This blaggot, the smoking coat still gripped in his hairy fists, suddenly pitched forward like a fallen Joshua tree at Red Gillis' feet. Red leaned over with a thin smile, playing at the corners of his mouth, not liking what he saw, and lifted the badge off of Bladgett's cowhide vest and pinned it on his own. Bumpus Hell had a new sheriff. Hmm? Eh, hey. Hey, then I heard it.  Over the window, raised it and looked up. I didn't like what I saw. An overcoded figure reached the third floor landing and stood silhouetted against the lighted window of Rosemary's apartment. He was about the height and weight of that rat, Joe Donigan.  Donigan! Donigan, watch it! I didn't want to get too close to him until I passed that lighted window. He made the roof just as I crossed in front of it. The classes from his revolver told me that. They also told me he had two slugs left to throw at me. The only light up there was a feeble glow from the skylight dead center. I headed to the cover of a brick shim, made just to the left of it. I had two things in mind. The skylight was its most logical avenue of escape and I hoped I could tease him into emptying his gun at me. It didn't work. I stuck my head out. No shots. But he did use his gun. I should have stood in Bumpus Hell. The United States Armed Forces Radio Service is presenting the weekly adventure of Dashel Hammett's famous private detective, Sam Spade.  Yes, and, honey, you've got to pull yourself together. Now, come on, come on, come on. These delirious Truman's will get us no place now. Come on, Sam. Yeah, you're sure right. Come on. Now, do not rush things, honey. That was quite a clip he gave you. Yeah, where were you? I was combing my hair out of the window. And he was on the fire escape, not four feet away. Not a very good shot, is he? No, he isn't.  Here, now, let me kiss it and make it well. Wild root. Yes, you know, it gets me ahead socially and on the job. Oh, well, now, what next, Sam? Rosemary, I am going to the top now. My dander is up. Let's have a moment of silence while I put through a call to Lieutenant Thomas Dundee of Homicide. It took your boys less than an hour to locate Joe Donaghan and haul him in, Lieutenant. Rosemary's charges were not enough to hold him on attempted murder, and all I could identify was the back of his neck. But you were good enough to bag him anyway, so Rosemary and I could relax. I went downstairs to bed and started Chapter 4. Uh-huh. Red Gillis didn't trust Curly Mallard, the foreman of the Crooked S. Uh-huh. Frosch, Harry speaking. The human mind is unpredictable, Dundee. From his health, a thin smile began to play around the corners of my mouth as I climbed the stairs to Rosemary's apartment. When I got there, I didn't like what I saw. It was a note pinned to the door. It said, dear Sam, I have been called to do another audition. If anything crops up, you can reach me at Greystone 34292. Hobson's Choice. Were you there? As a matter of fact, I was. Would you like to hear about it? I would. Well, first, I'd better tell you a little about my fear. I've been interested in politics. I do say so myself. Yes, yes, I know. You ran for assembly. Come to the point. My wife's a professional woman, and her own career keeps her busy. A good deal at the movie magazine, say, a clash of careers and so on. That's how I happened to take up with Rosemary. I didn't know she was married. And of course, when I found out, I dropped her like a hot potato. Potato, yes. Potato. And then she started blackmailing me. Did you know about that? I still don't. Well, I think I can convince you. Go ahead. Well, I received a series of threatening phone calls from Rosemary. And I finally decided to go to Donaghan and tell him the whole story. Oh, he was as mad as a wethead. Wethead? Well, he said he'd stop her. And I believed he was the right man to do it. Well, last night he phoned me. He said he'd had a little, little caucus meeting with her. And assured me I'd have no more trouble. But no sooner had I hung up that phone when she called again making another outrageous demand. I decided then and there to take things into my own hands. So happens I'm a crack shot. And I knew that I could come close enough to frighten her without actually hurting her. You were laboring under a false impression, huh? Oh, yes, yes. Well, you believe me now? Up to a point. Well, I'm afraid that's all I have for you, Mr. Space. Well, I have something for you. Oh, what's that? Look up here. You see this bruise in my head? Well, all in the game, you know? To shake. I still, I'll get it. Yeah? This is Rosemary again. Listen, I want to talk... No, this is me. You change it. Yeah, look, Rosemary. And I am just the work. Yeah, well, look. I could be. Rosemary Fowle's still here. Did you have an appointment today? Hey, yes, honey. I called this morning. She was here then. Oh, wait. You must be mistaken about it. The office didn't open till noon today. Yeah. Well, could I talk to Miss Wilkerson? She hasn't heard us now. Oh, she hasn't. She never gets into a one. Not into a one. She's over at KQW cutting a transcription for our new show, Gold of the Girls and Gay. Oh, no. I mean, Gayle of the Girls and Gay. Don't you mean Gayle of the Gold and Gay? That's it. Girl of the Gold and Gay. You said it. I'm glad. Well, anyway, she's in here. Oh. Oh, yes, Miss Wilkerson. Your heart... Oh. Well, Miss Wilkerson, I was telling this gentleman, you weren't here. Obviously, I am. Did you have an appointment? I talked to you on the phone this morning. Spade. Oh, Rosemary's friend. Well, you might know. She'll be out in a moment.   Well, that's a slight exaggeration. In fact, the whole thing was a mistake. Oh, really? I understood that... Oh, here she is. Rosemary, here's your friend. Sam, I am glad to see you. Yeah. What's the matter? Plenty. Oh. Well, thanks loads, Miss Wilkerson. I hope the recording is better on this one. I'm sure it is, Rosemary. We'll call you when the client makes up his mind. Oh. Well, thanks again. Come on, Sam. Goodbye, Mr. Spade. Goodbye. Sam, what is this new development that appears to be griping you? Uh, why didn't you tell me you were shaking Hobbs and Don? Uh-huh.  Look, Rosemary, you may be an actress, but with me, your audition is over and you did not get the part. And just what are your future intentions and regards to me? None whatsoever.  The office swiveled my chair into a comfortable position, opened the February number of share of an outlaw to page 112, the trail in bump as hell, Chapter 5, Stampede. It was disappointing. There was a lot of stuff about boiling cattle and dust clouds and flowing curly standing on top of a butte, not liking what they saw, when somebody yelled Stampede. Red Gillis was riding ahead of the cattle and his horse stepped into a chuckle and he sprained his ankle. Red of the horse, it didn't say which, but red was lying prostrate on the path of the avalanche of parsing horns, not liking what he saw. Uh, hold it a minute. Let's see. It's on page 113. Learn to be a private... Hello! Stampede. Such as? Oh, she got him. Oh yes, I do remember I must have left the door unlocked. Where were you? I just got out to get some cigarettes. Did you approve it? Oh, afraid not. I got halfway and found I didn't have any money and came back. You came back, walked through this room, went in the bedroom and didn't see the body until you started back. The lights were off. I stumbled over it. This is the gun? Yes. She did it with my own gun. Oh, I never dreamed her love for me would drive it as self-destruction. Of course, now it's clear what really lay behind our poor, clumsy effort to blackmail me. It was a desperate move to get me back. Oh, I'll never forgive myself for driving that poor girl to this. Don't worry about that, Hobbson. This isn't suicide. Murder? Oh, great heavens. What will Belita say? Belita? Yes, my wife. Belita Wilkerson? Yeah, professional name, you know. I was explaining to you before that... Oh, that's my wife now. What in the world do I tell her? Never mind. I'll get it. Hello? Who? I'm just calling. Why she wants you back, I will never know. But I sold you cheap and you weren't worth a cent. Yeah, Rosemary, I guess we were all too late.   She had the recordings under her arm. All right, Belita, I'll take those. Well, what are you? Warner! Mrs. Payne. Unlock the door, Belita. We're going back in. Warner, why are you... You better do as he says, Belita. Well, all right, but... Give me those keys. I don't... Inside both of you. What do you play these records? The recording studio is just through there, but you can spare yourself the trouble. I admit I tricked Rosemary into recording those blackmail speeches and then played them back over the phone to Warner. Trying to hold on to my husband is a crime. Then I'm a criminal. Oh, now, Belita, my dear. Come on. Stop that. We've got to get busy. I phoned the Hobbson house and you were still there, Dundee.  But when I told you, my thigh obli... thigh obliquely in genius scheme, you said yes, you'd be glad to because it was a sure way of getting rid of me once and for all. It took us nearly two hours to get things ready in Belita's recording studio. We took the parts of Rosemary's so-called audition records that we thought would fit the occasion and dub them onto a single side. We played it back once, then I phoned you at headquarters. Spade, Dundee. Everything's ready here. Did you pick up Donigan? Oh, yeah. Hold on. Okay, Belita. Start the record when I give you the nod. Yes. This is Rosemary. I forgive you for everything, but there are some things I cannot forget. You lie. It sounds like you. We have meant a lot to each other, but after what you have done to me, it is time you take through the nose. Rosemary, I didn't mean it. When I followed you to this house, you went right in like you live there. I just went nuts. What you have done to me, it is time you take through the nose. You rat. Listen. I am a girl who does not like to do things halfway. Listen, honey, you're not going to fall apart at me. I am just a guy for your voice. I thought you would get. We have meant a lot to each other. Okay, tell it. Rosemary, you're listening. Just fainted temporarily. Say it again, will you, pal? Thank you, Dundee. I feel better already. That abundantly clear. No. In order to discredit her husband's paramour, Belita gave her a come-on about an audition. I had her play the part of a blackmailer reading lines from a script which she, Belita, had prepared. And thereupon proceeded to play set records over the telephone, well knowing that her husband would erroneously believe Rosemary to be a blackmailer, in fact, and would drop her like a hot spud. No, Sam. No, I don't mean no. Don't hit her up. It was my inspiration. I, Sam Spade, to use Belita's Fendi's device for a hire for... No, Sam. No, that is not it. No, Sam. Isn't it the western story? Betrayal in Bumpus Crick. It is not Crick, Effie. You can't say H over the radio, Sam. Oh, yes, you can. Bumpus Hell is the post office designation of a hamlet right here in California. It is? Mm-hmm. Did Red Gillis ever find his brother? I didn't quite finish it. Go type that up and I shall. I... Effie, it doesn't happen. It's a misprint. That's what it is. What, Sam? Maybe the writer was tired. Oh, Sam, it's only a story. That's what you think. Well, did Red Gillis find his brother? I won't tell. Oh, not, Sam. Oh, well, all right. Remember the sheriff he shot on page one? What? Yeah, it turned out to be the new schoolman. Oh!  Good night, sweetheart. This is the United States Armed Forces Radio Service, the voice of information and education.


Good morning, Weasel. There has been many requests for more of you. Will. Good morning everybody. Today is a big weekend. I get the whole house to myself all weekend, all for one night.  I'm going to my mama's. She's leaving us all alone here. I'm trying to act sad, but I'm like BS4 all weekend. It's going to be a painting party at mom. She needs to paint her bathroom. Yeah? Oh, you're painting the bathroom? Yeah, apparently we're helping. Jasmine offered her services. How very nice of my big sister. It's non-toxic paint though. So if I am pregnant, we don't know yet, by the way. If I am pregnant, then at least it's not harmful fumes or anything. So mom make sure that. That's good. And we got, uh, Zavina going as well. Let me just go see grandma. Yeah? An auntie? An auntie jazz? An auntie jazz? He's excited. The big guys are staying home with me. We're going to have lots of fun. Big Frank is coming too. Big Frank is also going to go hang out with the ladies for the weekend, hey? The ladies, man. Hey, I don't think he's ever been to grandma's house. Is he not? No, I don't think so. And I think he's only ever met my sister once, maybe twice. You don't even know what you're in for. She gives a lot of treats.  So he hasn't met a ton of people besides the parents. Reiner, you're going to show them the ropes? You're going to show them how to do those puppy eyes for grandma? Get the treats? Uh-oh, you said the T word. Oh yeah? Chevy? Can I go to grandma's? We're having a guys weekend. Just the big guys. We're going to go pick up chips. That's what guys do, right? Exactly. Arm wrestling all the time. We're going to arm wrestle all weekend, right, Diesel? We're going to eat pizza. Oh, that's a good idea. Order pizza for yourself. I can eat whatever I want to eat. My mom made my favorite meal yesterday. What did she make? Chicken dudes, teriyaki, chicken drumettes. That's right.  I named them that when I was little. They're my favorite teriyaki chicken from me. So good. So good. The first time her mom made chicken dudes, I thought it was going to be something totally different like I've never seen before. I was like, wow, this is exciting. Something new. No, it's just chicken wings. They call them chicken dudes. But they're delicious. And they take a lot of effort to make. So my mama loves me. Just a kid's tall, hot chocolate, kid's temp. And that'll be it. Super Duper. Just watching my buddy Troy's vlog. He did it. That's hilarious. You know what I'd like to do? I'd like to get a compilation of everyone saying Super Duper to drive through doesn't matter. And if you can send him to me and we can make him we can put him in the video or something. We'll figure something out yet. That made my day. I wasn't expecting that at all. I was just sitting here watching this video. I'm like, wait a second. He's at the drive sir. Is he going to do it? Is he going to do it? I mean, did it? Oh, that was hilarious. His link to his channel is down below in the description of all my videos. It's called Beyond 1031. His name is Troy. His wife's name is Angie. And his son's name is Phoenix. And they make daily vlogs out on the west coast out in Washington state. He's a great guy. Super Duper guy. Well, I've got myself suited up a little bit here. You boys hold the fourth, okay? It's a little too cold for your pause. I want to go on a little bit of a longer walk. I'm going to see if I can do about two or three miles. Three to five kilometers somewhere in there. It's a little bit cold for your feet yet, okay? But we are going to go run around tomorrow at our land, okay? Just hold the fourth, okay? You don't let anybody near it.  You're not retired from guard duty. All right? Trust you guys. Don't let me down. It's finally warm enough to start walking and getting rid of this. I'm almost up to my point. The heaviest point I've ever been. I think the heaviest point I was was 225. And I think I'm at about 220 again. Just keep packing them on, packing them on. You know, the end of the year is always bad for that because you've got Thanksgiving, you've got Christmas, and then you've got the deep freeze of winter where you don't want to move. You just want to sit on the couch inside and chips taste so good. There's that. And then you've got to finish all the Christmas chocolate and Christmas cookies, obviously. And then you're left like this in February and March waiting for the weather to warm up. That building over there, that taller one, was it like five, six stories? That's where my grandpa lived. It was a thin walking distance of my house. And I was kind of excited when we moved into town that I could walk over there. He could walk over to our place, visit, or I could walk there and see him. But as we moved, it's when this whole virus thing started, right? And then we were right down the street or right within walking distance and couldn't even see each other. Now I've got to wait. See him again one day. Steinback Skate Park. It's actually quite a busy place in the summertime. It's not very big or anything, but I was never much of a skater myself. I dabbled once. Didn't end well. I'm definitely not a skateboarder. So I was thinking about getting a bicycle for myself and maybe for Brett too if she wants one. I was thinking about riding my bike around in summertime. Haven't had one in a long time. Never really think about it, right? Because I'm an adult now. I just drive myself everywhere. Well, a lot of you have asked about this clock tower in town here. I still remember when they built it. I don't know if there's a plaque here or something explaining it. Nope. Just a Steinback clock tower just for fun. No reason. Did you know that Steinback is German for Stony Brook? This town was built diagonal along the Brook. That was very stony when they first got here. So they called it Steinback Stony Brook. This here was the Brook. So this is the Johann G. Barkman Heritage Walkway here. It follows the original Brook. It's all been drained now. It actually doesn't have any flowing water anymore. But it used to be homes along here. Heinrich Brant and Gerhard Warkington 1838 to 1909 1848 to 1900 Heinrich was employed as a carpenter in the village. Gerhard was a widower stayed in Ontario during the first winter of 1874 to 1975 and moved here. So before this school was here this was one of the original homesteads along here. Along that Brook right there. It'd be probably a little more interesting to show you in summertime. So we'll come back here then. Now it just looks like a ditch. But it's raining right along this place here. A little further down the walkway we were just over there. Here's the school still. Here's another plaque that says more of Steinbeck's Heritage Homesteads were right here. Cornelia's Fast and Helena de Ferre. The Fast moved to the West Reserve. That's Yonzi in Winkler in the fall of 1876. Here's Kloss B. Friesen. The Friesen House barn sorry, the Friesen House barn also was a house and a barn built in 1889 was demolished in 1960 to make way for commercial development. So the arrow points right here. So this used to be a farm in the beginning. And then there goes the Brook. The Brook would have gone right underneath this road right here. They would have been right along the water and had their little farm right here from 1889 to 1969. And then look at us now in 2021. Looks a little different. I bet you if I could travel back in time and stand in this exact spot in 1900 I wouldn't even recognize it. I'd probably also be trespassing on farmland now. Instead of walking along this big road here. Interesting how things change over time. So that was in 1969 when they knocked down that barn to make way for all of this. That was 70, let's say 70, 80, 90 50 years ago give or take a few. About 50 years ago I wonder what this whole area will look like in another 50 years or in 50 years. I guess I'd have to ask my great-great-great-great-great-grandchildren one day. Hopefully they're still in the area. Hopefully they don't take off for the big city like a lot of people do. I never noticed this, but this is one of those signs that those LED signs or whatever. One on both sides, right? Typical advertising. I always thought that those were lights. Those are cameras pointing at the sign. I guess so that the owners can make sure that it's working correctly. Or maybe they just like sit at home on Saturday nights and watch the ads on their screen from their house. Ha ha ha! I guess it makes sense. You want to make sure your signs are working and you don't always want to run across town to make sure. Were you a good boy, chef? That was a good walk, actually. It's good. I wanted to go far enough that I would feel it. I didn't want to go easy on myself. I don't like just taking little walks that I don't feel. You got to be able to feel a little sore after. And since I'm not used to walking and stuff one second here, let me get in here. We walked 4.2 kilometers around town here. Let's quickly do the math. The Markins 4.24 divided by 1.61 2.63 miles under 3 miles But hey, maybe tomorrow we'll do more. I'm happy with that. I haven't gone on a walk in a very long time. Remember in 2017 I walked about 3 miles every day from April all the way to our wedding in September and I went from 225 pounds down to 185 I think or 190. I think 185 I hit. April, May, June, July, August in 5 months. All I did was walk and watched what I ate a lot more. It's all chuck. It didn't take rigorous exercising or running or anything uncomfortable like that. I just went for a walk every day. 3 miles and it's 5 kilometers and it really does quite a bit. So hopefully this summer I can get back on that track. I really hope so. Gonna try hard. So thanks for hanging out with me today guys. Got the house to myself for today and tomorrow. Tomorrow we got a lot of stuff to get done around the house. I want to get a few things done and ready for when Britt comes home. I've got to get my laundry ready for the next week. I want to take down the Christmas lights. I want to redo the lights in the backyard. I'm excited to show you guys that. I got some good ideas going on here. I'm glad we went for the walk today. It made me feel really good. It always gives me more energy the next day. So I'm looking forward to that. And hopefully we can make this a habit this summer as the weather keeps getting warmer and warmer. I'd like to go down, like I said to about 190 pounds and like 220 now. So 30 pounds. I can do it. I did it in 2017. But I did have the motivation of our wedding. So I got to find the same kind of motivation for this time so that I can do it again. But you know, we're home every night now and hopefully we can continue with this trend. And the sun will be up longer soon too so we can walk in the evenings. But anyways this coming week on Monday we're going back to work. I'm going to be pulling this pop trailer around doing what I'm doing now for one more week. And after that we're going back to some more familiar scenery. Going back to hauling. Some of the same stuff I was hauling before and I don't want to tell you too much about it yet. Okay. So we're going to leave you in a little bit of suspense for the next week. But we are going to have some familiar scenery again in about a week now. But the scenery will be familiar. We're going to be doing some flat bed and a lot of 53 foot drive-in. We're going to be in a different truck. I'm excited to show you. I don't want to say too much. I've already said too much. Okay. We'll talk about it more in the coming week. But we got to... we'll have another week yet in pulling the small trailer around and then I'm excited to see what the future brings. So thanks for tuning in today guys. I learned a little bit about Steinbach history today with you. It would be so interesting to go back in time to my great-great-great grandparents when they first settled here and what it looked like when they first started building buildings here and started settling the town and getting their first post office and getting their first fire station, building the first roads in here. It used to all be swamps and marsh in this area. They had to dig out these huge canals to drain all the swamps and then turn it into nice land that we can use for agriculture and living on. So it was totally different. They did a lot of work. And I'm sure they'd be pretty interested to see what their great-great-great-grandchild was doing in the same town that they built. And I'd be very interested if I could go in the future and see what my great-great-great-grandkids would be doing in this same town. I hope that you either keep it up or at least make it better. Try not to make it worse, okay grandkids? I hope you're doing your best to make it better. I'll see you tomorrow everybody. Got a lot to do.


do this this came in 2006 so is it D D for donkey yes sir yes D is correct all are we getting D yes sir a thin circular ring of mass m radius r is rotating about its axis with concert angle of omega two objects are attacked gently on the opposite ends of the diameter of the ring the ring now rotates with angular velocity omega dash equals to what now you know even if you are a little bit confused about the concept you don't have any other option other than using conservation of angular momentum okay so that should just pop up in your head that conservation of angular momentum I can use here about the center of mass so your system is these two objects and the ring so if you consider these two objects and the ring as a system then the forces between them becomes internal force so you can't say that that is external talk okay so you can conserve angular momentum when you do I1 omega 1 is equal to I2 omega 2 I1 is mr square but I2 is not mr square I2 is mr square plus capital mr square plus another capital mr square because moment of inertia when you place two objects changes suppose you know you have one object here another object there okay so moment of inertia of these two object is mr square and capital mr square both capital mr square so two capital mr square is a moment of inertia of these two objects itself plus moment of inertia of the ring which is mr square so this is new moment of inertia into new angular momentum sorry new angular velocity let's say omega 1 this is equal to initial angular momentum this into omega so you get omega 1 from this particular equation okay so option D will come out to be correct here any doubt on this anyone please type in say alright anyone what do you answer sir I'm getting B B for Bombay yes okay many are getting option D to be correct that must be correct only 20 yes B is correct B for Bombay alright so here I'll just give hint with respect to this question okay so let's say you have a bigger ring like this this is radius 2r and another ring this is disk correct this is disk of radius 2r then a disk of radius r is removed so that this circumference is touches so this disk is removed okay now the center of mass of the new disk is alpha by r from the center of the bigger disk the value of alpha is what basically you know the question is about finding center of mass of this remaining structure so this remaining structure is symmetrical about this horizontal line yes or no so center of mass should lie horizontally somewhere okay so let's say that center of mass coordinate is x here alright so we can also say that if I add the smaller disk on this particular structure then I will get the bigger disk okay if I add this smaller disk on this one I will get a bigger disk of radius 2r okay so without changing the coordinate axis which remains same I can locate the center of mass coordinate for this which is what r by 2 comma 0 okay the center of mass will be here somewhere and its center of mass is 0 comma 0 and this one is unknown now you can say that this bigger disk is made up of this and this smaller disk so the center of mass coordinate for this bigger one should be equal to let's say mass of that is m1 into x plus mass of that is let's say m2 then m2 into r by 2 divided by m1 plus m2 this is center of mass location of this bigger one which is what 0 okay so when you get that to 0 you'll get the value of x which is the center of mass of this structure okay now you get the well you get a relation between m1 and m2 you need not know the value of m1 m2 because you know you you can cancel out the constants from numerator denominator or anyway it is equated to 0 so the mass is proportional to the surface area because the mass is uniformly distributed over the area so just write constant times area of the structure as mass and that's how you get the value of x and then you can answer this question okay if there is any doubt on this please message or say it I'll move to next one so won't it be m2 into r m2 into r see the rate the radius of oh yeah sorry this is our distance of this point is our the center is our for the smaller one so you're correct this is our only okay I've taken diameter as R so this point x coordinate is our only so m2 into R okay good then there any other doubt I'll move to next one this one try to solve this this is I think a simple one don't get you know bottom by just looking at number of marks and subjective question it can be solved easily this is a last question for the day you can easily you know you can take your time get it correct okay and you have five to ten minutes to solve this question sir the answer almost three no there are two uniform thin rods each of masses 0.01 0.02 rigidly joined the combination pivoted at lighter end I can it can rotate about point p a small object moving hits the lower end sticks to it fine so now when the when the small object hits the hits the rod okay can you conserve the linear momentum no can you conserve linear momentum when the block hits when the small mass hits the rod yes or no can I conserve linear momentum others those around yes sir can I conserve linear momentum just before and after you cannot conserve linear momentum just before and after collision because it is hinged at point p okay so at from the point p there will be external force getting generated okay because of which you cannot conserve linear momentum okay and that external force at point p could be impulsive also large amount of force could be generated at point p right so you cannot conserve linear momentum okay then in this collision what you should conserve just before and after see coley during collision they only in elastic collision there is conservation of energy that happens and here it is not elastic collision it sticks to it so you cannot conserve energy just before and after so what you are left with conservation of angular momentum nothing else there has to be some equation that links what is happening before with what will happen later on okay so you are going to conserve angular momentum you can see that even though there is a force from point p but because of that force the torque with respect to point p or any axis passing through point p will be zero yes or no because of perpendicular distance of that force which is acting at point p from the point p itself is zero so the torque due to that hinge force will be equal to zero with respect to the axis passing through p all of you agree yes so since yes since that is axis where the net external torque is zero even though there is net external force but net torque about axis passing through p is zero so you can conserve angular momentum about that axis you cannot conserve angular momentum about any other axis because there is a prerequisite to conserve angular momentum you can only conserve it about an axis about which net external torque is zero and that axis is an axis passing through p okay now what is the initial angular momentum of the part of the system total is there any angular momentum of the rod initially no no so angular momentum of the particle plus angular momentum rod initially should be equal to angular momentum of particle plus angular momentum of rod finally so angular momentum of rod is zero but what is the angular momentum of particle perpendicular distance into its momentum right so let's say velocity is v so mass times velocity into its perpendicular distance which is what this much yes or no this distance is how much let's say this distance is 2l each has length l which is 0.6 meter so m v into 2l is there any doubt on this no this is an initial angular momentum this should be equal to final angular momentum now see the thing is when the particle hits the rod it becomes the part of the rod itself okay so I can say that these two together can be treated as a single mass a single rigid body that is equal to moment of inertia about the fixed axis into omega okay and what is the moment of inertia about the fixed axis if you look at this the thinner rod the thinner rod has mass let us say m1 that is about p its moment of inertia is m1 l square by 3 okay plus let's take the thicker rod thicker rod I need to use parallel axis theorem I will translate this center of mass axis from here okay this is going into the board okay from here till here the moment of inertia about this axis which is this one which is center of mass axis we know that it is equal to let's say m2 l square by 12 okay plus this is center of mass axis plus m2 into l plus l by 2 whole square this into omega okay sorry this is the moment of inertia I'm pointing fine this is the moment of inertia of these two rods plus there's a particle also whose mass is m let us say so m into 2 l square so this is the total moment of inertia after the collision about that axis fine so from here you'll get the value of omega fine all of you understanding what I'm doing here yes those who are on youtube please type in yes or no are you getting it is there any doubt okay okay all right so I have just got the angular velocity immediately after the collision okay now what should I do I have the situation that it is just able to become horizontal this entire system there is this thin rod and then there is a thick rod this rod along with the mass it becomes horizontal fine initially it was like this fine so what should I do between this point and that point I have it's angular velocity what should I do working on it working as a theorem so simply I'll use w is equal to see this question is subjective question okay so this kind of question may not be asked in objective question as objective question because this will consume a lot of time to solve but then a small part of this question can be asked they can just ask you what is the angular velocity after the collision comes in like that so but then you'll get to learn many concepts from the single question that is why we're doing it k1 plus u1 okay so w is 0 and k2 is also 0 it just able to become horizontal as you guys see many a times our focus is to get the answer and you know don't focus on the answer and in that process at times I see that you know you tend to become so focused about telling the right answer that you you resort to other means also so those who are not getting the answers correct don't get intimidated by first of all that many people are able to answer the questions you are not able to you I mean it is perfectly fine okay so just keep a moral high and keep working hard your hard work will not go waste that you can take in writing from me okay so and also those guys I mean don't try to you know focus only on the answer look at the understanding of it how we are analyzing the particular scenario and all that because this exact same question will not come but the learning will remain with you so the final potential energy you can see that one way of finding potential energy is to find out the location of center of mass of this entire rod plus mass system and find out how much height it has gone up to okay that is one way of writing potential energy the other way is just this just you can split this entire thing into three parts okay for example potential energy of the thin rod let's say tr then potential energy of the thick rod for that is also tr so we can say th r just for I mean just it's a thick rod okay the second potential energy or we can just write t1 and t u1 and u2 u dash and u double dash and this is potential energy for the mass okay how much is u dash u dash is mass of this thin rod which is m1 into g and how much is center of mass has gone up by this distance which is what l by 2 so m1 g l by 2 u double dash will be equal to m2 g you can see its center of mass was here which is what distance this from here to here l plus l by 2 okay so this is 3l by 2 so mg into 3l by 2 okay and potential energy for that mass which was moving is mg into 2l because it has gone from here up till here so this is how much it has moved up fine so you can split the potential energy and write no need of finding center of mass okay the value of k1 is what half i about the fixed axis into omega square okay and u1 is a initial potential energy so you can see that this horizontal line which passes from the below this horizontal line represents the zero potential energy line okay so with respect to this line you can write down all the potential energies you can write down potential energy for this see the potential energy initially for this rod is not zero guys okay so I think I missed a point here so see the thing is I have assumed this as zero potential energy line okay so with respect to this final potential energy for this position is m1 g 2l m2 g 2l and mg 2l because all of them are at a height of 2l from the zero potential line okay initially their potential energy will be m1 into g into this height okay which is 3l by 2 okay plus m2 into g into l by 2 because this center of mass is this much height and this small m is at zero potential energy so that is not coming in picture so when you solve this equation then you'll get the answer getting it so this one was little involved question I urge you to again revisit this question try to solve it yourself you will learn many many you know small small concepts from this single question itself okay so that's it for today I hope you have learned many things today and don't forget to like the session okay before leaving and let me know if if there is something bothering you or you want me to revise any other concept why don't you suggest a concept immediately after this class you can WhatsApp me what next you want to you want me to revise or some concern you have with respect to any topic here and there okay so that's it for today and we'll see you next time thank you sir thank you sir


There is a literal smorgasbord of smoking-gun ancient architectural anomalies which dot the Peruvian hillsides literally thousands of miles of ruins. With ancient trails stretching far into South America and much farther afield, the largest known ancient artifact ever found is, in fact, a trail just like this. Yet the structures they build still stand as a testament to their Creator's abilities, which were indicative of an ancient civilization with abilities and knowledge that mainstream academia seems hell-bent in its reluctance to even consider the possibility of their existence. It refuses to even discuss the topic, regardless of the fact that these buildings were made by people who were members of advanced ancient civilizations that somehow became lost within history, possibly during a near-extinction level event. Yet I digress. Our reason for the digression is an intriguing, if limited, post we came across recently, discussing one of the most remarkable, if little-mentioned additions to the most miraculous factors of the ancient Peruvian architecture, most notably its polygonal masonry, which has allowed it to be earthquake-proof for untold ages. Its keying stones, featured in the article, allowing these ruins to just brush off earthquakes, such as the 7.7 on the Richter scale quake that hit Peru in 1950. As mentioned, it was a curious article, and the reason for our fascination and surprise in its existence was the institution responsible for its printing. It would seem, in a brazen move just casually covered advanced technology, i.e. keying stones, the institution in question was Cambridge University. And as mechanical keying, the article does indeed begin with explaining the stone's miraculous placement and thus their ability to brush off natural disasters, yet predictably just drifts off into another subject without ever attempting to answer the obvious. That being, if these locations were built by the civilizations in which academia, and we should say especially Cambridge agrees, were a primitive people with a primitive knowledge of stone architecture and primitive tools, how did they not only create these keying stones but the seemingly perfectly cut stones which make up the famous polygonal stonework of ancient Peru, not to mention the multi-layered megalithic fortress of Saqsayhuama, clearly created by those who built Machu Picchu, but the enormity of the stones they used and the possible reason for this seems too deliberate for it to not have been indicative of some warning, yet regardless of each side in particular, their keying stones are a remarkable legacy of a lost civilization, one which we find incredibly compelling.