♫ Oh What does that look like to you, Lana? Fireworks. Why? Glowing...

Title: Oh What does that look like to you, Lana? Fireworks. Why? Glowing and everything. Or they look like fireflies, glowworms or something. Well, let me turn on the light so you can get a better look at what it is. Hey, it's only steel wool. Yes. How can steel wool burn? Like, steel doesn't burn. How do you know that? Well, because if you have pokers and stoves and stuff made out of steel and they don't burn. Even a frying pan you put right on the fire and it doesn't burn. Well, that's because I'v...
Full Transcript: Oh What does that look like to you, Lana? Fireworks. Why? Glowing and everything. Or they look like fireflies, glowworms or something. Well, let me turn on the light so you can get a better look at what it is. Hey, it's only steel wool. Yes. How can steel wool burn? Like, steel doesn't burn. How do you know that? Well, because if you have pokers and stoves and stuff made out of steel and they don't burn. Even a frying pan you put right on the fire and it doesn't burn. Well, that's because I've arranged this in a sort of special way. to show you that oxidation, you know what that is? Yeah. When materials combine with oxygen, can take place even with things that normally you think won't burn. So if you're going to do this at home, it's relatively easy to do, but it's kind of dangerous, so you should do it with your parents. You just take an ordinary ball of steel wool like this, see? Yeah. But you open it all up so that it's real open. And why do I want to do that? So the oxygen can get in between. Yes, so the oxygen can get in between each one of them. Okay, light this one now. And see how I've opened it all up. But again, be very careful. Do this with your parents because it's certainly fire. You're burning something you don't think can really burn. Okay. Right, so you light it along the bottom. And now notice each one of the little strands of steel is... obviously hot enough, and the match flame was hot enough to get it started, and then each one of them has a lot of oxygen, so it can really burn. It turns red hot. Yes. In fact, there's a little heat coming off of it. Yeah, it is. It's pretty hot. Now, do you suppose if you lighted a little pad of steel wool, all scrunched together, we'd get the same effect? No, because there's not much oxygen inside it. Because it's not getting much oxygen. Well, let's try it. Now, notice I have my cover on here that I put on the table when we're doing dangerous experiments and a couple of bricks. Maybe that will give you a clue. Here is a fuse. You get ready to light it while I wait to make sure this is out. Okay, and I can get it out of the way. Now, what do you predict is going to happen? Only a little bit of it is going to burn. Because? No oxygen inside. Well, not very much. Try it once. You say when the fuse gets down there, there's a little bit burning already. That's kind of what you expect would happen. Yeah, it didn't burn very much. Yeah, it didn't burn very much. Now let's make sure that's out. In fact, I'll get rid of that glowing fuse on the top. supply of oxygen with it. Then it would burn. Yes, it would. And ordinarily you think of oxygen as what? As a solid, a liquid, or a gas? A gas. Yeah. But there are chemicals that have oxygen in them. Really? Yeah, carbon dioxide gets oxygen combined with carbon. I guess so. Yeah, combined with carbon. Well, I have a chemical here that when you get it heated up, it releases oxygen. So we're going to sort of make a jelly roll out of steel wool. Okay. and here's the chemical that's in powder form but will release oxygen. Look like we're making a jelly roll? Yeah. Keep going. Put a little extra frosting on the top. Sort of looks like sugar, doesn't it? Yeah. Okay. Here's another fuse. Now, if we get a good supply of oxygen, What makes it going to happen this time? It's going to all burn. You're not kidding. Once you light that fuse, you step back with me out of the way, okay? Okay. And now we'll take steel that you don't think can burn, give it enough oxygen, and you watch what happens. Holy, that's bright. Yes. So when you supply even things you don't think can combine with oxygen, when you supply enough of it, and you also get it hot enough, even steel will burn. Jason, here's what you need to play a nice trick on your friends. A spool, a playing card, that you put a pin through the middle like that. Oh, okay. Then you put the card on top of the spool, and what you have your friends do is blow through the hole in the spool to blow the card off. Oh, right. That's easy. Look at it. Okay, now why? I don't know. Well, you and I have done some experiments in which we've speeded up the air. Think of what's happening to the air as you blow through the spool. Oh, yeah. Well, if you speed the air up blowing through there, well, it'll lower the pressure. Right. It lowers the pressure between the end of the spool and the card. Yeah. So if there's lowered pressure there, what happens to the outside air pressure? Well, if the pressure here is heavier than that, it'll just push it down. Right. And you can't blow it off. So the harder you blow, the more the card's going to stick to it. Try it. Real hard this time. Give up? I give up. The larger insect is a female firefly, and the smaller one, a male. But they're not mating. In fact, they're not even the same species of firefly. You see, normally, the female of each species flashes the chemical in her abdomen with a specific code, answered by males of the same species. That's how they get together for mating. But this female has learned the codes of several other species and flashes their signals to attract males not to mate, but to be eaten. Tannis, have you ever chewed string together? No, I've never even tried to chew string before. Well, it takes a great deal of skill and a little bit magic. Here's a loop of string, see, tied. Okay, there's the scissors. You pick up the scissors and I will form this into two loops like this. So you cut it right there. Okay. There. Okay, now there are four ends. Two there and two there. I'll put this end in my mouth. Wow, how did you do that? Chewed it together. But how did the two ends stay together? Well, I sort of weaved it all together with my lips and tongue. You don't believe me. No. You know it's a trick. That's weird. Well, now, the reason why this trick works is because you made an assumption, and scientists work very hard not to make assumptions, especially if they're incorrect, and that's the kind of assumption you make. made. Here's how you do it. Get a loop of string like this. There are two ways to form a loop. One way is like this. See, like that? Yeah, that looks like the way you did it. That looks like the normal loop. But that's not what I did. What I did was I went all the way around like this to form a loop like that. Now you can get the trick, I assume? Yeah, I think so. If you practice forming a loop like that, I'll get ready to cut it. That's the idea. Okay, now put your finger over one of them. Put your finger right over there. Then hold it up like that for your friend to cut. Now show the four ends. Okay. Okay, now you put that end in your mouth. Okay. And take out that little piece of string that's there. Like I did. Okay. That's what you're doing when you're chewing the string together. You're taking that little piece away from the other strand. Don't open your mouth and let them see what you're doing, though. Aha, you did it. So it's a nice trick to play on your friends because they will make that assumption that scientists try not to make that it's a wrong kind of loop. Okay. That's an easy one. Today, Stacy, you're going to be a fingerprint detective. You're going to have to find the guilty finger. Okay. Now, I've made it relatively easy for you because here are the prints of my right hand, starting here with the thumb and going down to the little finger. Okay. Here are the prints of my left hand, going down here from the thumb to the little finger. All right. Now, here's a blank one. I want you to turn your head. I'm going to here make a new print. Are you almost done? Okay. Okay, there you are. Okay. Now, what do you know about fingerprints? Well, I just know what I've read in detective stories that they use dusting powder and a brush, and they can find fingerprints. Well, that's because there is a sort of body oil and grease on your fingers at all times, even when they're very clean, and you leave them on especially smooth surfaces, and they use the dusting powder to make it come out, both white and black. And then, who has their fingerprints taken? Babies do when they're born. Well, I think they use a footprint. Oh. Okay. Anybody else? Oh, I've seen them take fingerprints of criminals on TV. Yes, when they suspect that you might have been at the scene of the crime. Then everybody in the armed forces has it. And various other types of employment, they identify you by fingerprints. What are you going to look for now? I think first I'll look for the size. Yes, that made it relatively easy, the size alone. Then after you've determined the size, what are you going to look for? look for? Well, the swirls and the dips and the arches in the middle. You know the various types of prints? Well, mine have sort of an N-shape. N-shape? Oh, you've taken your own fingerprints? Yeah. And I've some swirl. And then there's a tented arch and various kinds of arches. By the way, if you want to do this at home, you don't have to have a stamp head. Vacuum cleaner dust works pretty well. And transparent tape you can make and put them on a piece of paper. That's how we did ours. Okay, so now you are going to see if you can find the guilty finger. Okay. I think I'll take this one. Oh, I see what you mean. This one kind of goes up in a point. No? This one's too small. You've eliminated those? Yeah. Okay. That one's... I'm going to keep that. Okay. See, this one swirls, too. Yeah. No. No. I've eliminated these ones too. Okay. Here's a magnifying glass. Now you can take a close look at it. Okay. First of all, what does it really look like? Is it a tent, arch, swirl, what? It kind of, it comes from the side and goes up. Okay. And curves around. Well, I think, yeah, I think your left thumb is the guilty finger. You think the left thumb is the guilty finger? All right, let's see if you were right. There are the prints, and here's the guilty finger, the left thumb. This is Mount St. Helens erupting with a violent blast. After the eruption, scientists from the U.S. Geological Survey and Sandia National Laboratories flew in by helicopter. Here's what they found. The eruption had blown away a huge chunk of the summit of the mountain. Within six miles of the volcano, everything had been blown away. Trees, grass, even the topsoil. Farther away, trees had been blown over. Their limbs and bark had been stripped away. The damage was more severe than anyone had expected because rather than shooting straight up into the air, Mount St. Helens exploded sideways, tearing away the north slope and sending a blast wave directly across the land. Spirit Lake was filled with thousands of logs. Each was once a tall tree in the dense forest around the mountain. Parts of the river that flowed out of the lake, were trapped beneath the mud. As the water hit hot sediment, the steam pressure shot geysers of water high into the air. The scientists landed at what was once a logging camp. The force of the blast destroyed this bulldozer. They took photographs, recorded temperatures, and collected samples. From melted plastic articles, they estimated the heat of the blast wave that moved down the mountain at speeds of up to 200 miles per hour. 150 square miles and an explosion equal to 10 million tons of TNT, the scientists concluded this was a small eruption. The information collected on expeditions like this will help scientists understand volcanic activity in the Pacific Northwest. You see, Mount St. Helens isn't the only volcano in the area with a record of eruptions in the last 200 years. Others include Mount Rainier, Mount Lassen, Mount Baker, Hood and Mount Shasta. Scientists will continue to go on expeditions to Mount St. Helens to study it in detail so that they can better predict volcanic eruptions in the future. How are you doing with Logo, Michael? Oh, I'm just using Logo to teach the computer to make a square. Isn't that neat? Well, let's see. What did you do? So, forward 50. Yep. Then that little thing in the middle there, I gather, went from there to there, right? Yep. Then right 90. Then it turned a corner and went over that way. Yep. 90 degrees. And then, I see, FD is forward. That's an abbreviation for forward. Okay. And then RT is right. Yep. And that's the degree. Forward, right, forward, right. Okay. Then I drew a square. Now what are you doing? Repeat. Well, what I just did was I found an easier way to do that. How? Well, what I did was I put repeat four, and so that'll repeat what's in the brackets four times. Okay, so the computer knows the word repeat. Yeah. Then it knows it's going to do it four times, and now you're going to tell it what to do. I see. You're going to do all these things, but do them all down there. Yeah. Well, here, I'll try it again. Repeat. Four. Bracket. Bracket. Forward. Fifty. Mm-hmm. Right. Right angle, 90 degrees. Then the bracket, and then enter. There. Ah. Neat, hey? So the computer knows how to square right now? Well, not exactly, because I have to program it first. Let me show you. What? Square. I don't know how to square. Okay. So it doesn't know how to square. You're going to teach the computer to do it? Yeah. Okay, what do you do to do that? So I have to go like, let's see, 2. Square. Okay. Then it has a different little kind of computer thing. Oh, a different kind of thing over there, yes. Okay, now I put all those little... That whole line up there? Yeah. Okay, what is it? Repeat four. Repeat four. Bracket. Four. Bracket. Forward. Oh, I see. You're writing a little program. Yeah. That's all it is. You're writing a program called Square. 90. And now all I have to do is print out end. Why? Well, that's all it needs to do is square. Oh, in other words, that tells the computer that's the end of your program. Yeah. Okay. Square has been defined. Okay, now in order to make a square, clear the screen. Now what happens? Okay, now all I have to do is print out square. And now, just print it out a square. Isn't that neat? I've got this really, really neat design, and I call it the flower. The flower? Yeah. You mean you already have a program called Flower? Okay, what's that look like? Okay, clear screen. Okay, I'll clear text, too. Oh, I see. That got rid of all the printing. Okay, now all I have to do is print out Flower. F-L-O-W-E-R. Enter. Let's see what you've done. Oh, it's taking your basic program and repeating it over and over, twisting it each time, and each time a different color. Oh. Looks like a flower, doesn't it? Yes, it certainly does. Very neat. When I push down, this goes up. That one goes up. And when I pull this one up, that one goes down. That's because they're connected with a tube and I have colored water in there. But before we go on with this, I have a challenge for you. Okay. I want to challenge you to lift a car with one hand. With one hand? I don't really think I could even lift a car with two hands, so... Or maybe even four or five or six if you've got some friends, right? Yeah. Pretty heavy. Well, you're going to be able to do it with one hand with the help of a hydraulic jack. And that's what you were playing with here. Really? Let's start from the beginning. Okay. You notice that when you push down on this one, this one up. Now go the reverse. Pull up on the little one. The little cylinder goes up and the big cylinder goes down. Now push down again. You're transferring liquid from this one to this one, right? Right. Okay, but the important thing is how much pressure you're transferring. Bring it back up again. Okay. Look at the size of these two cylinders. Let's say that the big one is three times the size of the small one. Looks about like that. of pressure on that diameter right there, you'll get three grams of pressure over here because that's three times as big. Oh. Because the pressure is equal in all directions all over a liquid when you put pressure on it. So if I'm putting pressure here, I'm getting one gram of pressure, but if it's pushing that up the same amount as this, it has to be pushing up three times as hard. Right, three times as hard, right. So that's how you're going to lift the car. Now, you don't get something for nothing. What are you losing? Well, This takes longer to... Like this one is moving faster than that one. Okay. There's a difference in speed. Yeah. This one, I think maybe you lose distance. Yes, also distance. In other words, you're going to have to pump this through a greater distance. Here's how we'll do it. Push it all the way down. Okay. Now I'll close off this little clamp right here. Okay. That'll prevent the water from coming out of the big one. What'll happen if I open this one down here in the glass? And you pull up over there. of the glass and then I'll... Okay, you got it there? Then if you close that and open that, I'll pump that one up to 30 now. Right. Right? There you go. Okay. Okay, you're now raising the car. Yeah. One more pump. Okay. Here comes more water from the reservoir. In a real hydraulic jack, they don't use water. They use a high-grade thin oil. Is that so it won't freeze and get stuck? Yeah, so it won't freeze in the winter. for your last pump. Okay. Let her go. So when we go out and work the hydraulic jack, what I want you to look for is the big cylinder and the small cylinder. And you'll be able to raise a car with one hand. Okay. Okay, Jason, here's the car you're going to lift with one hand. that's gonna help you do it. Oh, I see. There's the little cylinder and the big cylinder. And is that the valve right there? Well, that's a valve that you release the liquid from the big cylinder when you want the car to go back down again. I have all the other wheels all blocked off, so just go ahead with one hand, lift the car. Okay. The little cylinder looks to be about five times smaller than the big one, so I'm getting, if I put on one gram, I'm getting five grams in the big one, right? But you have to go through five times as much distance Yeah. With the handle, right? Uh-huh. Ha-ha, look, look, look, look, look, you've done it. With the help of a hydraulic jack, you lifted a car with one hand. Thank you. you Thank you.
From Soundboard: Don Herbert Mr,Wizards World 1980'S 1990'S AI Voice
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Oh What does that look like to you, Lana? Fireworks. Why? Glowing and everything. Or they look like fireflies, glowworms or something. Well, let me turn on the light so you can get a better look at what it is. Hey, it's only steel wool. Yes. How can steel wool burn? Like, steel doesn't burn. How do you know that? Well, because if you have pokers and stoves and stuff made out of steel and they don't burn. Even a frying pan you put right on the fire and it doesn't burn. Well, that's because I'v...

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Don Herbert Mr,Wizards World 1980'S 1990'S AI Voice

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Description: Mr,Wizards World 1980's 1990's

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