Now as gunshots echo across the windswept snow-covered reaches of the wild Northwest Quaker pup wheat and Quaker pup rice the breakfast cereal shot from guns Present the challenge of the Yukon It's Yukon King swiftness and strongest lead dog of the Northwest Placing the trail for Sergeant Preston of the Northwest Mounted Police in his relentless pursuit of lawbreakers Gold gold discovered in a Yukon a stampede to the Klondike in the wild race for riches Back to the days of the gold rush with Quaker pup wheat and Quaker pup rice Bringing you the adventures of Sergeant Preston and his wonder dog Yukon King as they meet the challenge of the Yukon Say if at breakfast time you're Yes, hungry as a lion Well, sir, just you dive into a heaping bowl full of delicious Quaker pup rice or Quaker pup wheat Man, oh man, there's a treat that'll tame the old appetite. In fact, it's the cat's meow Yeah Yes, these ready to serve giant grains are shot from guns our nourishing crisp tender loaded with nut-like flavor So tomorrow enjoy this breakfast treat Quaker pup rice or Quaker pup wheat Lona Elliott had been away to college in the States But when summer came she returned to the Yukon to spend her vacation with her brother Dr. Seth Elliott who practiced in the mining community of Faro City On her second morning in Faro City Lona encountered the man she had been yearning and yet dreading to see his name was Jack Rolf Jack I heard you were back Lona. I I don't think we'd better be seen talking to each other. What's the matter? Are you afraid it might get back to Seth if you want to know? Yes, I am why didn't you ever write to me Lona while you were away in the states don't you realize that I couldn't Seth made me promise that I wouldn't write to you or see you ever again What right is he to dictate whether you can or can't see me please try to understand Jack I owe everything to Seth He's even putting me through college big-hearted Seth The only reason he's sending you to college is to keep us apart. That's not fair Jack Seth has taken care of me ever since I was a little girl He's been wonderful to me. It was no more than his duty to take care of you After all he's your brother. He's my guardian, too If it weren't for that, would you marry me? Well, I oh, please don't ask me that. Don't you see that? Jack what's the matter? It's Seth. He's seen us and he's coming over here. Let him come Lona. I Thought you promised me you wouldn't see this fellow again. Please don't make a scene.  So keep your remarks to yourself for your information Lorna, and I happen to love each other What's more I've just asked her to marry save your breath Rolf the answer is no what have you got against me? I won't mince words. You're not good enough for Lorna. If you think I can't support her properly. You're wrong My stepbrother and I struck it rich last winter our mine is worth at least 50,000. It doesn't all to the situation one bit The point is I don't intend to let Lorna throw herself away on any rough-necked sourdough You've got better plans for I suppose that I have Lorna's attending one of the finest schools in the east. He's moving in a completely different world from ferro city You don't belong in that world Rolf, and you might as well know it right now You think you're pretty high and mighty Elliott, but you're not going to keep Lorna and me apart any longer I'm warning you Rolf stay away from my sister from now on If you don't I swear Please don't quarrel anymore. The whole town's watching. Let him rave Lorna. It's time.  Then you'd better keep out of range of my god So it's gunplay you want Elliott Maybe you'd like to suggest a place for a meeting I'll be waiting for you down on hangman's Creek at eight tomorrow morning You must be out of your mind. You keep out of this Lorna. I'll have something to say to you when we get home For you Rolf.  You want to make sure everything's done fair and square come along and see for yourself that suits me fine. I Want plenty of witnesses on hand when I drill this pole Jack Rolf's stepbrother was a man named Abe Slater Short time after the crowded disperse Slater walked into the North Star cafe He signaled to a tough-looking white man who was seated at a table with a shifty-eyed half-breed The white man rose miss chair Wait here muckluck look like Slater want to see me in the back room about something What do you want to see me about Slater listen friend Have you heard about that duel my stepbrother's gonna fight with doc Elliot everybody in town heard about it Suppose I tell you it's worth a thousand dollars to me to have doc Elliot win that duel You mean you want your brother to get killed jack Rolf ain't my brother. He's my stepbrother. I still don't savvy What you got against Rolf look Finn? I'm hiring you to do a job Why I want that job done is none of your business.  I want to know the whole deal All right Jack Rolf for me are co-owners of the pharaoh princess mine. Yeah, I know that and it's plenty rich mine, too Neither one of us has any close relatives except each other In other words, I'm jack's next of kin So if anything ever happened to yak his share of the mine would pass to you you catch on quick Yeah, it's smart idea Slater But are you gonna make sure he act gets killed?   Suppose someone is hiding close by Out of sight of the crowd but within gun range of the duelers Oh on the two duelers start walking away from each other pretty soon. They get the signal to turn and fire When that happens the person that's hiding already has a beat on jack On their two guns go off his goes off to and jack gets plugged right between the eyes Yeah, that's pretty slick But things might not work out smooth as you figure. What do you mean? Suppose yak kills doc Elliot before doc gets a chance to fire in that case how you're going to explain yak getting plugged Or suppose doc himself happens to hit yak How you going to explain the fact that two bullets hit him I've already thought of that you just listen to what I'm gonna tell you now It was later that same morning that Abe Slater called on dr. Elliot the doctor greeted his visitor currently What do you want Slater? It's about that duel tomorrow morning doc. What about it? Well jack ain't so sure he wants to go through with a duel after all. You mean he's turned yellow Well, let's say he's decided to be reasonable about Lorna My to understand from that that he's willing to keep away from her from now on that's about it In that case, I needn't be any duel tell him he can stop worrying It won't be necessary for me to puncture his main g high sure as decent of your doc only it It isn't as simple as all that why isn't it Pharaoh city is a pretty tough place doc If the boys ever found out that jack turned yellow he'd be laughed out of town What am I supposed to do they got my handkerchief and weep while it's like this Jack wants to know if you wouldn't be willing to put on a Well a fake duel a fake duel. Yeah dual.  What is this? Some scheme that you and Ralph have cooked up. No trick dark honest. It isn't You can tell your sister beforehand what the arrangement is You know dawg on well jack wouldn't try any funny stuff under those circumstances. I suppose you're right Why should I be party to any such farce just for all sake? What do you got to lose doc? If you don't agree to this scheme jack will probably have to fight you just to save his face So why don't you play along and avoid bloodshed? After all jack's willing to promise you'll stay away from Lorna. Oh Very well What are you laughing about doc? I can hardly wait to tell Lorna about this After leaving the doctor's cabin Abe Slater went to the mine in search of his stepbrother He told jack a story similar to the one he had just told dr. Elliott And the doc told me the few do like he asks he won't make any more trouble about you and Lorna seeing each other What's the idea of this fake duo business? Oh, that's just to save his face He's afraid that if people ever found out how he turned yellow he'd be laughed right out of town And there's something fishy about all this. Why do you say that? It seems to me doc Elliott is changing his tune awful sudden like He hates me.  Oh, listen jack Elliott may be an ordinary curse, but you know He wouldn't pull a trick like that Besides he says if you don't trust him I can go over this evening and get it straight from Lorna herself In that case, I guess it must be on the level. Well, how about it? All right Tell him if he'll stop interfering between Lorna and me. I'll fight that fake duel with him Just the way he asks Meanwhile Lorna Elliott had gone to Dawson city to get help from Sergeant Preston miss Elliott As a member of the Northwest Mounted Police, it's my job to prevent gunplay. I Can promise you that duel will not take place Then you will come back with me. I'll be ready to leave as soon as I've notified the inspector. Come on King You and I are going to Farrell's city with miss Elliott It was evening when the sergeant and Lorna Elliott arrived back in Farrell City The doctor was seated in his cabin mixing a prescription as they entered Why beg your pardon sir, I didn't see you hello doctor Seth I went to Dawson and brought back sergeant Preston He's going to stop this crazy duel between you and Jack. I'm afraid you've made a useless trip sergeant Oh, how's that Jack Ralph is not quite so willing to risk his hide as he pretended he was what do you mean? The fact is he's turned yellow We'll continue our story in just a moment All King Cole was a merry old soul Yes a merry old soul was he that is Until one fine morning at the breakfast table when he called for his pipe and he called for his bowl Thunderation. What is this? What is what your Majesty look? Just look at my bowl Yes, your Highness why it's the bowls empty. There's nothing in it. Well, you see where is it? Where's what your highness what my Quaker puffed wheat? That's what well, you see a terrible thing has happened We're fresh out of Quaker puffed wheat fresh out. Yes You see you had two helpings yesterday morning emptied the package and well, we forgot to order more. Oh And well, sir you absolutely refuse to eat any other kind of breakfast cereal But may I make a suggestion out with it? Nave might I suggest you just try this try what this Quaker puffed rice? Well, all right Quaker puffed rice. Did you say yep? It's shot from guns to just like the wheat Hmm Looks good. Hey, these are premium grains exploded up to eight times normal size to make them crisp and tender Bigger and better tasting their shot through and through was swell nut-like flavor to say Does this ever taste good and it's good for you Quaker puffed rice as well as Quaker puffed wheat are nourishing both delicious kinds furnish added food values of restored natural grain amounts of Vitamin B1 niacin and iron I'll say Jay now. Here's what from now on. Let's keep both kinds on hand We need Quaker puffed wheat one day and Quaker puffed rice the next Well, it's a deal and say fellas and girls you should try just that in your home And here's another tip keep a good supply of both kinds on hand at all times Yes, enjoy the breakfast fit for a king eat Quaker puffed rice and Quaker puffed wheat shot from guns Now to continue our story When Lorna and Sergeant Preston arrived at Dr. Elliot's cabin He told them that Jack Ralf was afraid to go through with a duel. I Can't believe it certainly doesn't sound like Jack Ralf. That's not all When did you hear the rest the rest it seems Ralf doesn't want anyone to know what a yellow pup he is He's afraid he'll get left out of town if folks ever find out So he wants to put on a fake duel. What do you mean? Well, he wants us to go ahead and pretend we're fighting a real duel But we'll each fire harmlessly over the other man's head and what did you say? I wasn't going to it first, but I finally agreed. Well doctor. I'm afraid I'm going to have to interfere with those arrangements So dueling is just as much against the law in the Yukon Territories. It is anywhere else in Canada Therefore there's not going to be any duel tomorrow morning harmless or other ways Sergeant Preston left the Elliot's cabin and set out to find Jack Ralf In the streets of Farrow City. He drew rain at the site of Abe Slater Well, what are you doing in town sergeant I came here to stop the duel between your stepbrother and dr. Elliot I've already seen the doctor now. I'm looking for Jack. Well, maybe you don't know it sergeant But that duel is going to be a fake dr. Elliot told me that The duels of any kind are against the law and I intend to stop this one Find Jack at the mine as a matter of fact you can't sergeant He went over to Beaver Creek on business. I'm going to be back. Maybe not for another hour or two yet Would you like me to give him the message? No, thanks, but you might tell him to look me up since he gets back to town I'll be staying at the Maple Leaf Hotel. Why sure sergeant. I'll do that come on like it Abe Slater went to the cafe and spoke to Finn in the back room What's up Slater sergeant Preston's in town and he's aiming to stop the duel don't he know it's going to be a fake Yeah, but he's still gonna try and stop it. He's already talked to doc. Yeah, I live now He's looking for Jack that ain't good. We're gonna get that money out of town and keep him away till the duel is all Over with how you're gonna do that Well, I'll suppose Preston gets a note from Mountie headquarters telling him to come back to Dawson City right away Saying he's needed an urgent business or something. You'd have to obey orders, wouldn't he? Guess he would at that only who's gonna give him a note so he won't get suspicious What about Mocklock you you mean that sigh wash half-breed that trails around after you all the time Sure, he's sitting out in the cafe right now. Thank you'll do it for little fire water He do practically anything suppose he squeals on us afterwards. I wouldn't bear I got enough on him to hang them Besides, I saved his life once. That's why he follows me around all the time. All right, get him in here And I'll start writing out the note a Short time later a sergeant Preston was approached by the half-breed Mocklock Joe in front of the hotel Sergeant Preston that's right. Bring note Dawson City. Oh, thanks See what it says Return it once to Dawson City. You need it here urgently signed the inspector Who gave you this note man money headquarters give note what he looked like Remember we're red coat Think him inspector Very well. Did he pay you to bring this note to Farrow City? He give ten dollar Say you give five dollar note deliver All right, here's your money Me go now Sergeant Preston checked out of the hotel and rode out of Farrow City with King trotting it aside About a mile out of town he halted No, King, I'm not going to Dawson. I'm going to stop here and make camp you see fella Something funny about that note. I've never yet seen Inspector Maynard sign himself the inspector What's more that half-breed couldn't tell us what he looked like I think the whole thing was just a trick to get us out of town, but we're not going to fall for it boy Sergeant Preston wrote a short note and then he said all right, King. I'm going to tie this note to your collar Take it to Inspector Maynard fella Inspector Maynard back in Dawson City Meanwhile Abe Slater had gone to Dr. Elliott's cabin. What is it this time Slater? I want to know if you're still aiming to fight that duel tomorrow morning the duel is off Sergeant Preston won't allow it sergeant Preston has left town doc He had to go back to Dawson City. Well as far as I'm concerned the duel is still off boys around town are going to be mighty disappointed What do you mean when they're all counting on you and Jack fighting that duel now that Preston's out of the way As a matter of fact, they've been hounding Jack ever since Preston left They're saying he's yellow if he doesn't go ahead and shoot it out with you So now he's sending you around to fix up another fake gunfight is that it you guessed it doc Well the answer is no Preston has laid down the law and that's all there is to it Well in that case Jack says he don't see no reason for keeping that promise about Lorna. What's that? So that's the game. Shucks you can't blame the kid doc Hey, well, we'll fight that duel tomorrow morning But I'm warning you Slater Frouff tries to back out of the bargain afterwards and starts hanging around Lorna again I'll gun him down regardless of sergeant Preston or the whole Northwest mounted police force It was long after midnight when King arrived in Dawson City. He went to Inspector Maynard's cabin King what in heaven's name are you doing here? Come on in Well, I'll be gonna know tight your collar. Let's have a look at it Specter Maynard Just received a message supposedly from you ordering me back to Dawson City The inspector read the note and then said to King your master was right King. I never sent such a message Right out on answering you'd better take it back to the sergeant right away Early the next morning Abe Slater went to Finn's shack on the outskirts of Farrell City Listen Finn, there's been a change of plans What's up and the Gower came into town late last night and said he saw sergeant Preston camped about a mile outside of town You mean he never fell for that note after all and looks that way He's probably planning to stay out of sight till eight o'clock Then catch everybody red-handed just as a duel begins or that the gums up the whole plan don't it?  They'd have to fight their duel an hour early Seven instead of eight Sounds like the whole town is used as anxious to have this shooting match come off as you are Slater There's plenty of excitement. All right The boys are all placing bets on who's gonna win Are you and muck luck over to Hangman's Creek get settled in your hideout right now? The crowd will likely start over that way in another half hour or so right boss You just leave it to me Shortly before seven o'clock sergeant Preston stood beside his horse at his campsite outside of town Hate to leave here before King gets back, but I guess we'd better write in the town keep an eye on things If that note was a trick someone's awfully anxious to have that duel come off on schedule Arriving in Pharaoh city sergeant Preston was surprised to find the town deserted That's funny Should be someone up and around even at seven in the morning. I Wonder if they've decided to hold that duel early better get out to hangman's Creek and investigate Meanwhile King was approaching the sergeant's camp outside of town All night long the great dog had been traveling This coat was caked with mud and every muscle in his body ate, but he pressed forward game late Soon he would be feeling the touch of his master's hand Hearing warm words of welcome and praise To King's surprise and disappointment the campsite was deserted Sergeant Preston was gone The long-form moment of rest and welcome would have to be postponed Great dog paused for a moment to pick up the sergeant's scent Then he faced weirdly toward town and started off in pursuit of his master On hangman's Creek the moment of the duel had finally arrived Excitement ran high among the mob of onlookers that had streamed out from town No one in the crowd except Abe Slater knew that two men lay hidden in a dense thicket on the hillside Overlooking the scene of the duel. You've got carbine ready Finn. I sure have my clock I'm keeping a bead right on yak rocks head The minute he turns around to fire.  Yeah, that's right. Hey look like dual bone start At the moment Abe Slater began counting sergeant Preston was racing toward the hillside Both Finn and muckluck saw it. It's Preston. It's coming to stop the duel. Oh, not your gun We don't want no noise use your knife as sergeant Preston drew closer muckluck poised his knife ready to hurl it straight at the Mouty's heart King hearing the sounds of the mob had taken a shortcut over terrain which the sergeant's horse could not cover His keen eyes saw the two men crouching in the thicket and he realized that the upraised knife was meant for sergeant Preston Great dog wanted to warn his master But his breath was coming in painful gasps and his lungs were already straining to bursting Summoning his last ounce of strength King drove toward the thicket King's attack through both cooks off balance and Finn's shot went wild Easy Then swung his carbine to aim at the sergeant as the Mountie fired first Oh my arm Boy on guard.  Finn was all set to shoot Jack with a carbine just to see and Dr. earlier turned to face each other Why that dirty pole cat? We ought to strangle him off Oh no, no, it wasn't my idea Abe Slater was the one who planned it No one's going to string anyone up. The law will deal with these two and Abe Slater There he is sergeant over there with Jack Huh? Abe Slater guessed what had happened on the hillside And as the sergeant strove to break through the excited mob Slater sees Dr. Elliott Slater are you going crazy?  Are you willing to shake hands? I'll be glad to doc But I think we both owe a big debt of gratitude to sergeant Preston He saved me from Finn's bullet and he saved you from a charge of murder It wasn't I who saved you, it was King who saved us all Yes King, you're going to get a rub down a meal and a good soft place to sleep Just as soon as we get back to town Yes boy, this case is closed In just a moment sergeant Preston will give you a preview of Wednesday's adventure Ask mother, she knows Yes mother knows that quality comes first in a food That's why the famous breakfast cereals Quakerpuff wheat and Quakerpuff rice Are made from only the premium grains of wheat or rice What's more these choice ready to serve grains Have restored natural grain amounts of vitamin B1, niacin and iron So for the best always ask for Quakerpuff wheat and Quakerpuff rice Yes to get the original crisp fresh wheat or rice shot from guns Always buy the big Quaker red and blue package It's never sold in bags or bulk Listen Wednesday when sergeant Preston and Yukon King meet the challenge of the Yukon In the case of death and the lucky seven King and I were on the way back from along patrol When we found an old prospector who had been shot from ambush With his dying breath he told me that half a map showing the location of a gold claim Had been stolen by the murderer The trail led to a second killing The case of the lucky seven ended with a surprise that nearly cost me my life Be sure to hear this exciting adventure Wednesday These radio dramas a feature of the challenge of the Yukon Incorporated Are created and produced by George W. Trendle Directed by Fred flower day and edited by Fran striker The part of sergeant Preston is played by Paul Sutton They are brought to you every Monday Wednesday and Friday at the same time By Quakerpuff wheat and Quakerpuff rice The breakfast cereal shot from guns This is Jay Michael wishing you goodbye good luck and good health from


Debbie Brennan and today we're going to kick off a skills session series for you. So the idea is that over the next few videos we'll perform a skill and your job is to find out what's missing. And today our skills session is going to be us going into a patient and providing personal care to that patient. So drop a comment in the box below and let us know what you think is missing. Good morning. We're here to help you with the wash if that's all right. We're going to get some things together. We just wanted to make sure that you're comfortable at the moment and not in any pain before we get started. So we're going to take the bed spread away but we're going to keep the sheet on all right. How's that? Are you not too cold? So Marjorie I'm just going to start with your face if that's okay. Do you prefer to have soap on your face or just plain water?  I'm going to give you face to dry. Just close your eyes again for me. Is that okay? Do you feel dry? I'm just going to take this away for a minute. Now we're just going to take this down and get your gown off. Okay so we can wash the top off. Are you warm enough? Can you just lean your forward a little bit? That's lovely. Okay my back for all the smarts then. Okay so I'm going to take that gown away and then go with your arms first. Thank you. Alright Marjorie I'm going to start washing you now. I hope the water's all right just let me know. Okay is that all right? Wonderful. You've got some family coming to visit you this morning. That'll be nice. Give me a little dry now and then Claire's going to do your other side. Do you got any perfume or deodorant that you'd like to wear? We'll go and get that then that'll be locker. Any moisturizer? Get that as well. Okay. So I'm just going to do this on now. Put this underneath. Oh you've got one. I'm just going to wash this on for you. It's always ticklish isn't it?  It's nice to have a wash isn't it? I like it all fresh. Do you like to feel dry enough? Let me just get rid of this for a minute. Fantastic. I'm just going to do the chest area okay so I'm just going to pour this down. Is that okay? You're not too cold. It'll be as quick as we can.  Is that okay Marjorie? I'm just going to give you a dry. So this video was just the very beginning of us providing personal care to a patient. So all the procedures that we're using over the next few videos are the ones which we use here at BCU. We're really aware that different universities will do things very very differently so that's just to let you guys know that that's where we're coming from. Thanks for watching. See you later.


What I want to talk about tonight is cool code. It's kind of the observation that coding has a history and we are very bad at history in software development. We don't pay enough attention to it. We're also very bad at recognizing that there's kind of a vast work of literature in software, by which I mean the code. There are lots of examples that we can learn from, lots of examples that amuse us, and we're not very good at collecting this and treating that as a community. So I'll start off with this little book that I edited. 97 Things Every Program Should Know. This is the Japanese translation, which I love dearly. I can't read it, but I love it dearly. Because the quality of production is fantastic. I remember my publisher saying, oh yeah, you've got to wait for the Japanese edition because it's so well produced. Quality of paper, different templates. It even has a dust cover. If you're going to kill trees, this is a great way to do it. Now, in the preface I wrote, and I've conveniently translated it back into English for your benefit, there is an art, craft, and science to programming that extends far beyond the program. The act of programming marries the discrete world of computers with the fluid world of human affairs, which puts programmers in a rather curious position of mediating between the kind of the negotiated and uncertain truths that we find in the world of business and the very crisp uncompromising domain of bits and bytes and our constructed types. This is one of the challenges in software development. It's not so much just the code, and it's not so much just the humans. It's the fact that the very active programming has to bridge these. That is one of the things that each one of its own is hard enough. But to try and bridge that is a challenge. It's also quite exciting. Now, when I say art, it's worth clarifying that software developers are the greatest producers of installation art on this planet. This is one of my favourite pieces from Copenhagen Airport about three years ago. I like the shade of blue. I think it's quite exciting. I also like the extended and rotated landscape. I think it's provocative. I think it says something about the post-modern condition. I was disappointed that when I returned back through Copenhagen Airport on that visit, they had replaced it with some advertising. But, you know, we do produce the largest amount and greatest amount of installation art. Now, Kalyanna Berg in 97th century


have a hiccup or it goes offline it should still work. So I'm hoping that'll be the case. I want this to work. I want it to work without any glitches. That would be really nice. Got it. Nooo. Screen real estate? All right. Let's get back into the game. Everyone? Do battles again? Because this is Smire your cart battles of course.  Very helpful right here. All right. Let's get on the track all right. And I'll be on Mario's team. And let's do sherbert land this time. So let's get into the stream. What do you guys think of that intro music from like when the stream starts? I went a little too soon on that one there. I like it. It gets stuck in my head though. The music does. You guys are looking for it from youtube audio library. It's called Beyond. It's a pretty good song I guess. It sounds something to go that way you know. I'm going this way. I'm gonna get you Iggy. Lost that life there. I gotta get someone this time. Well the stream seems to be very golden cheese. So what I'm thinking I'm gonna do is I'm gonna try it a bit later today. I'll try it a bit later today. I'll do the stream a bit later today. So I'll maybe have a schedule up on the dashboard. So all right thank you guys for watching. I'll see you soon.


My favorite way to heat up a leftover burger or any food for that matter is to use a microwave oven But have you wondered how does it work? How does it heat up things without fire? Well turns out that these ovens produce electric fields and Burgers or any food items contain moisture which have water molecules and these water molecules are electric dipoles But wait, how does that explain anything for that? We need to investigate what happens when dipoles are kept inside an electric field And that's exactly what we're gonna do in this video and towards the end of it We're gonna figure out exactly how a microwave oven works. So let's begin So let's say we have a uniform electric field inside which we keep an electric dipole And just to quickly recap. What's an electric dipole? Well two equal and opposite charges separated by some distance is a dipole and what is this p-thing? Remember dipoles in themselves create this beautiful electric field and the strength of the field everywhere Depends on the product of the charge and the distance between the charges and that product is what we call P The dipole moment the dipole moment represents the strength of the dipole and why is it from negative to positive charge? That's it's a vector Why is it this way because it kind of represents the direction in which it creates the field You can see the field that dipole creates is away from the positive and it's coming into the negative And so the dipole moment kind of represents that now we've talked a lot about this in our previous video So if you need if you feel you need a refresher feel free to go back and check that out But we don't have to worry about the field created by the dipole in this video So don't worry about that my question to you is what's gonna happen to this dipole when I keep it inside an External electric field think about the forces that are gonna be acting on this dipole and see how the dipole may be moving So can you pause the video and think about what would happen? Alright, so I know a positive charge experiences a force in the same direction as the electric field And so it's gonna get pushed this way and negative charge experiences a force in the opposite direction of the electric field And so it's gonna get pushed this way and since the two charges have the same strength And it's in the same electric field. The two forces will be exactly equal and Opposite and therefore I know the net force acting on the dipole or the total force acting on the dipole is zero So this means what happens to our dipole? Well our dipole is not gonna accelerate So if it was addressed it's gonna stay at rest. It's not gonna move. It's gonna stay over here But because the two forces are acting at two different points. We can kind of feel it in our bones This is gonna make it turn Think about it. If you imagine these were strings attached and you pull it what's gonna happen. It's gonna make it turn It's you can feel that right. It's gonna make your dipole turn this way and This turning effect provided by the force is called a torque So although there is no net force acting on it There will be some total torque that acts on our dipole and in the future video will calculate Exactly what that torque depends on and we'll derive an expression for that But for now, let's see the effect of that torque So the torque is going to make our dipole turn the two forces are gonna make it turn And what I want to know now is will the dipole keep turning forever? So what I want to know now is as the dipole turns What happens to this torque? Does it stay the same? Does it increase? Does it decrease with its direction change? What would that depend on? So for that we need to a little bit about what does torque depend on Well torque definitely depends upon the strength of the force if the forces are larger We'll have more torque, but the torque also depends upon the distance between the two forces So torque also depends upon this distance If this distance is high If this distance is far if the forces are farther apart torque is high It's for the same reason when you look at a bicycle the bicycle handles are far apart from each other because when you put a turning force on them Using your hands these are these are the hands. Okay The the forces are far apart and so the torque becomes very high It becomes easier to turn the handle, but imagine if this If this handle was not there, okay, and then you had to apply that same turning force directly on the rod Now the forces would be so close to each other the distance would be very small The torque would be very small it becomes so difficult to turn this you can feel this right So torque also depends upon the distance between the two forces And I want you to think about that as the dipole turns what happens to the distance will it increase decrease stay the same So pause the video and think about it. Let me get rid of this epic drawing Okay, let's see a second letter our dipole is going to turn And the forces come closer to each other. Can you see that the distance between them has decreased? Oh, so this means as the dipole turns this torque becomes smaller the more it turns The closer the forces get The strength of the force stays the same, but the torque becomes smaller and smaller eventually The dipole gets perfectly aligned and the forces are also along the straight line So the torque goes to zero But now there is no torque now these forces are just pulling the dipole apart Not producing any turning effect. So now our torque has gone to zero. So I'll just delete that And so long story short. What happened? Let me go back When the dipole is not aligned like when it's now perpendicular to the field the torque acts until it gets aligned Now in reality, even though even though right now the torque is zero as it turned it gained momentum It gained some speed and so because of its inertia, it might overshoot a little bit And now I want you to think what if it overshot this way? What would now happen? Well, now again, there will be a torque, but this time look the torque would be in the opposite direction Ooh, so again, we're seeing that the dipole is trying to get aligned in the direction of the field So again, the moral of the story is Dipoles experience a torque that aligns them or tries to align them in the direction of the field So let's quickly check our understanding What if I have an electric field to the left and I kept a dipole this way? What direction will be the torque clockwise or anticlockwise and how will it align? Can you think? Okay, since P tries to align towards E, this time the torque will be anticlockwise And once it aligns the torque disappears. Let's try one more What will happen here? Okay, again P wants to align towards E. So this time the torque will be clockwise Again once it aligns torque disappears One more, how will the torque be? Again P tries to align towards E and so this time the torque will be again anticlockwise Once it aligns torque disappears Okay Now let's really start having fun So again, keep a dipole in electric field, torque acts on it until it aligns, right? And it overshoots because of its inertia, but the torque takes care of it and aligns it Now here's my question. What if What if as the torque acts as it overshoots before it has time to align I flip my electric field? What happens now? Well, now the dipole says, okay, again, I have to align so it'll continue to turn And again before it has time to align itself when it overshoots. What if I flip my field again? What's gonna happen? Ooh, can you see what's happening? If I flip my electric field at the right time I can keep that dipole turning And that's exactly how your microwave ovens work So what do microwaves own do? Well, they produce microwaves, of course But what are microwaves? They're electromagnetic radiation and we'll talk more about them in the future videos What is important is that these microwaves contain flipping electric fields And they're actually flipping at billions of times per second And when you keep any food item inside your microwave pizza burger anything at all You'll find that these food items always have some or the other moisture, which means water molecules not so giant ones, but tiny water molecules And the important thing is these water molecules are electric dipoles and you learn more about this in chemistry It turns out that oxygen and hydrogen are sharing electrons and the shared pair of electrons are pulled more towards oxygen Compared to hydrogen as a result oxygen becomes slightly negative hydrogen becomes slightly positive We have a dipole turns out that this dipole moment is very very tiny But that's all that That's all that we need that tiny dipoles these tiny dipoles when they come inside a flipping electric field They will keep turning and as they turn they will make other they will hit other molecules They will make them vibrate pretty soon all the molecules are jiggling and as a result Your burger is going to get hot very very quickly This is how microwave ovens work incredible, isn't it to think That we use we use the idea that dipoles turn inside electric fields and we can use that to heat up food That is mind-boggling for me. It's pretty pretty amazing if you ask me So long story short keep a dipole inside a uniform electric field We'll find that the total force acting on it is zero so the dipole will not accelerate But there will be a torque acting on it and what does the torque do? It will always try to align the p vector or the dipole moment in the direction of the electric field


Hi everyone, Megan Cox here, and today we will be going deeper with Google Docs. If you are just getting started, don't forget to check out our Getting Started with Google Docs video linked in the comments below. In addition to creating Google Docs from your Google Drive, you can also access them at docs.google.com. It will bring you to a page similar to this where it shows you all of your recent documents as well as a gallery to choose from. By clicking on template gallery, you can expand to see several different templates to start with or choose from. You can also search your domain to see domain specific templates created by your organization. To use one of these, you can simply double click and customize it to your needs. Today, I'm going to demonstrate some of my favorite features in Google Docs by creating my own template. You can see here I've created a Google Doc and I've collected some resources for students on the three states of matter. I also have two tasks here for them. I want them to list some examples and answer this question. As you can see, my doc currently is not very visually appealing. I'm going to spruce up this document while I show you some of those advanced features. One thing to note is that most of the icons in Google Docs are pretty true for all of the Google tools as well as similar to the formatting options in tools like Microsoft Word and Apple's Pages. I can simply select my text and make adjustments as I need using the toolbar with these basic functions. However, you might want to customize fonts and make things a little bit prettier. Here you can see I have a dropdown of many fonts. By default, you will not have this many fonts. If you want to search or add new fonts, simply click on the font name, choose more fonts. Here you can search from a bank of fonts. Any that you like, you can click to add and choose okay. This will now be added to your list of fonts and remain in your list in all Google platforms. Another great feature is the ability to insert different types of media. Here I can insert images in a number of different ways. I can upload files from my computer. I have a built-in tool to search the web. In doing this, it will generate several pictures that I can now choose an image I like and click insert, and I can move this around on my page. As you will see, right now the formatting is in line with my text. I can choose to wrap text or break text as well. Notice there is also a margin, so if you want your text to appear closer to an image, you can make adjustments as needed. You can also choose to leave your image to make your image move with text on your page, or you can leave it in a fixed position so that it will not move as you add more text. As you are inserting images, one other thing to note is that you can also find images from your drive, your photos, take a photo, or by URL. If you insert a photo by Google Image URL, you can actually insert gifs or animated photos as well. Now that I have the header to my page, I can also insert other options. I can insert horizontal lines as well as tables and charts. In this case, I have three activities that I want students to do.  What I would like to do now is insert images and text and link my activities. So my first text, my first link is a text, so read the text below. The second one is a video. The third one is a game. So I'm just going to kind of put some placeholders, do some formatting, and organize my chart. This will now allow me to copy and paste my links in the box, or I can actually insert and hyperlink. By doing this, I can hit the link button on my page right here and then paste in my link. I can also select my text and choose insert link, and then paste it in. Or if you like keyboard shortcuts, you can select that text, and you can choose control K on a PC or command K on a Mac, and you can add hyperlinks. This is very helpful to clean up the appearance of your pages, and it will also allow you to link to different places on your page. For example, if I wanted my students to answer this question, but maybe I know that this is going to be a little bit more difficult, and I want to give them a hint, rewatch your video. I could link this back to the video up here and send them back to the page.  Insert bookmark, and now it's a placeholder on my page. From here, I'm going to do the same thing that I would do if I want to create a link, and I can hit that link button. I can go to insert link, or I can use my keyboard, and instead of pasting a link, I'm going to choose a bookmark, and it's going to show me any bookmark I made on the page. I can choose the one that says watch this video, and now it will take them back up to the top of the page where my video or my content is. This will allow you to create hyper docs or places where you can kind of help kids navigate from one page to the next in an organized way. In addition, you will see the ability to insert drawings. Drawing is a tool that allows you to manipulate text boxes, images, shapes, lines, and create your own images, and then once you hit save and close, it will appear on your page. If you notice on your toolbar, you have a couple options. Under your tools, you have some helpful things such as spelling, word count, the explore button, a dictionary, the ability to translate, as well as voice typing. There are additional accessibility settings that vary depending on the device or browser you are using. I would like to show you the explore button. In all Google tools, the explore button can be found under tools or in the bottom corner of your page. What it does is open a search bar for anything listed on your page. Since my page has information about matter, you can see that it's giving me suggested topics and images. I can also search keywords, and it will give me web articles, images to choose from, or it will help me search my Google drive for anything with that keyword. Really easily, I can click a photo, preview it, or I can drag it to insert it. This is a helpful way to kind of, that Google Docs allows you to enhance your documents by giving you suggestions and easy in-tool access. In addition to that, you may choose to look at add-ons, add-ons or additional web-based programs that serve a purpose that is not built in in Google tools. To get these, you simply click add-ons and get add-ons, and it will take you to a web store. Here, you can search for apps based off keyword or function, or browse to find tools that serve specific purposes. One tool that I would like to show you today, or one add-on that I would like to show you today, is icons for slides and docs. After installing this, you simply click on add-ons and choose start, and it will pull up a bank of icons for you. In these boxes, I would like to insert an image that indicates what they're going to do. Since this is a text, I want to see if I can find an icon that will indicate to my students they need to read. I simply choose them when I want. In this case, it allows me to choose color, and then I choose insert. Now, I have an icon in the box. If I want to do the same thing for here, I might search video, and I'm going to find an icon that's going to tell kids they're going to watch something. Again, this universal symbol that tells them to play something, I'm going to insert it. This time, I chose to make it red. This is a game, so I want them to know they're going to play something.  I'm going to make this blue. Now, if I want to adjust my page, I can take these images. I can also wrap them. If I double click on them, I can crop them, or I can go pair to image options and get back to some of those adjusting features. Now that I have the page the way that I want it, I want to show you a couple additional options. Of course, like any other Google tool, you can hit share and send to your kids. You can also post as an assignment on Google Classroom. When you're sharing documents with students and they have completed their work, one really nice tool is to change it from editing mode where you are actually changing the document to suggesting mode. By clicking on this, it is going to allow me to make suggestions for students to take or not. Let's say that a student answers, I think sand is a solid because... In suggesting mode, I can come in here and now when I type, I can give prompts. Think about... Or I can take a word and I can backspace that word out and replace it with another word. For editing or revising features, students will get messages like the ones below where they can see, do I want to take that suggestion and accept it? Do I want to write a reply? Or they can completely reject it. This allows you to make suggestions and corrections without changing their work so that they can see the suggestions you are making. One other thing that I always love to share is under the file option, you have the ability to make copies, download Google Docs in other formats, send as an email attachment automatically without leaving this page, publish to the web so that you can make it a public website, and you also have the ability to change language and page setup. Page setup allows you to change it from landscape, different sizes, as well as different margins. Thanks for tuning into our video today. Don't forget to check out other videos, subscribe to our channel, and follow us on social media.