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Chuck Bryant
No.
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Josh Clark
Hey, everybody, it's Josh. And for this week's Select, I've chosen our 2014 episode on electricity. And I chose it as a kind of Casey Kasem esque special dedication to one of our younger listeners, Charlie Pendergrast, who wrote in with a bunch of good ideas, one of which was electricity. Well, rather than just send him a link and being boring, I thought I'd share it as a select for everybody to enjoy. So if you enjoy this select, you can thank Charlie. Thanks, Charlie.
Charles W. Chuck Bryant
Welcome to Stuff youf Should Know, a production of iHeartRadio.
Josh Clark
Hey, and welcome to the podcast. I'm Josh Clark. There's Charles W. Chuck Bryant. Jerry's over there. Chuck's wearing his Last Chance garage hat, which means that all is right with the world.
Chuck Bryant
Yeah.
Josh Clark
You know, if Chuck's not wearing that hat, who knows what's going on?
Chuck Bryant
Yeah, there's. I thought I lost this thing.
Josh Clark
Yeah.
Chuck Bryant
Once.
Josh Clark
Yeah, I think I vaguely remember that.
Chuck Bryant
Dude, I freaked.
Josh Clark
I was, like, crying.
Chuck Bryant
I was on the phone with Delta and everything. I was like, oh, here it is. It's on my head.
Josh Clark
In your back pocket with Bruce Springsteen.
Chuck Bryant
That's right.
Josh Clark
How you doing?
Chuck Bryant
Great.
Josh Clark
Chuck.
Chuck Bryant
Yes.
Josh Clark
Let's talk about electricity.
Chuck Bryant
Electricity. Electricity.
Josh Clark
I've had the Talking Heads song in my head.
Chuck Bryant
Which one?
Josh Clark
Electricity.
Chuck Bryant
Okay.
Josh Clark
Where all he sees are little dots.
Chuck Bryant
I thought you're gonna say once in a lifetime.
Josh Clark
No, that's. What is that called? Once in a lifetime. Yeah.
Chuck Bryant
Yeah. I've been singing the Schoolhouse Rock electricity song over and over. In my head.
Josh Clark
What about the Electric Company theme song?
Chuck Bryant
I haven't been singing that.
Josh Clark
But do you remember it?
Chuck Bryant
Yeah, that was. I was Electric Company over Sesame street, even.
Josh Clark
Oh, yeah. I didn't think there had to be like a. You know. I didn't know it was like the Stones or the Beatles, you know.
Chuck Bryant
No, it's in the correct answer. There is the who, by the way.
Josh Clark
What do you mean? Like, that's the one you go for, the who. Is that right?
Chuck Bryant
No, I mean, yeah, I love the who. Do you? But I'm with you. I don't see the need to rank the things like that.
Josh Clark
Well, plus, the Electric Company came on after Sesame Street, I think.
Chuck Bryant
Yeah, it skewed slightly older. I think Sesame street to me, felt like, you know, 6, 7, 8 year olds. Electric companies were like 8, 9, 10, 12.
Josh Clark
And then even younger than Sesame street was Pinwheel. If I remember correctly, that was after your time. Pinwheel was pretty cute, but it was like little kids. And then Sesame street was like little kids. And then Electric Company was like, cool.
Chuck Bryant
Yeah. And Romper Room was kind of pre Sesame street even.
Josh Clark
So was that the one with Raggedy Ann and Andy?
Chuck Bryant
I don't remember. I just remember it was. It's very immature. Yeah, it's very childish.
Josh Clark
I think Raggedy Ann and Andy were in that. Well, at any rate, we've angered enough people now.
Chuck Bryant
I know.
Josh Clark
I have an intro for this one.
Chuck Bryant
Great.
Josh Clark
Okay, you ready? About 13.8 billion years ago, a little something called the Big Bang happened and the universe was created.
Chuck Bryant
So says you.
Josh Clark
So says a lot of people. Yeah, you know, we weren't around. Nobody saw it, but it's been detected. And it's strongly suspected by scientists that the universe is 13.8 billion years old and that it came from something called the Big Bang. Which, by the way, I would love to do an episode on.
Chuck Bryant
Yeah, let's do it.
Josh Clark
Okay. And under the auspices of the Big Bang Theory. Not the TV show, but the actual theory.
Chuck Bryant
Yeah.
Josh Clark
At that moment, all of the energy in the entire universe was created. Right then, Boom. Bam. Ever since that point, that energy has. No more energy has been created. And none of that energy has been destroyed. But it changes states, it changes shapes. It can be locked up in different places. It can be transferred from one place to another via some natural ways like convection, conduction, radiation. And like I said, it can be stored in stuff. Like it can be stored in your body. Right. Fat is potential energy that can be burned and used for energy to carry out work, which is all we're looking to do is work.
Chuck Bryant
That's right.
Josh Clark
We use energy to carry out work, whether it's digging a shovel or lighting a light bulb. That's what energy does. It produces work. Right.
Chuck Bryant
Yeah.
Josh Clark
Okay. We figured out along the way that we don't have to wait around for radiation or convection or conduction to do its thing to provide energy, because we'd have a lot of waiting to do. We wouldn't be in the computer age right now if it weren't for something called electricity, which is basically how humans have figured out how to harness converting energy from one type of another and then transmitting it a very long distance.
Chuck Bryant
Yeah.
Josh Clark
Because electricity isn't a primary energy source like the sun or solar radiation or nuclear energy or even the flow of water. Kinetic energy.
Chuck Bryant
No, it's created.
Josh Clark
Yeah. It's a secondary energy source. It's a carrier.
Chuck Bryant
That's right.
Josh Clark
So electricity carries energy from one point to another. And if you understand that, you understand the very basis of what we're going to talk about today.
Chuck Bryant
Yeah.
Josh Clark
Like we've figured out how to generate electricity to carry energy to produce work down the line.
Chuck Bryant
That's right.
Josh Clark
That's my intro.
Chuck Bryant
Which is usually mechanical energy is what's produced.
Josh Clark
Right.
Chuck Bryant
By a machine.
Josh Clark
Yes. So think about this, like if you capture mechanical energy, like water spinning a turbine, which we'll talk about.
Chuck Bryant
Yeah.
Josh Clark
And Niagara Falls. That's not going to do anything to light your light bulb 200 miles away.
Chuck Bryant
No, not by itself.
Josh Clark
No. Unless you connect the two, you send the work produced the energy captured in Niagara Falls down to your light bulb. And that's what we do. Using electricity.
Chuck Bryant
That's right. Yeah. It's pretty simple, actually. It seems complicated, but it's not. No, Just electrons moving around.
Josh Clark
Yeah. Let's talk about electrons, man. Let's talk about the atom.
Chuck Bryant
Well, should we talk about the history of this stuff?
Josh Clark
Yes, let's.
Chuck Bryant
Back in the olden days, in ancient times, there were dudes messing around with energy and static electricity without even knowing what they were doing. They didn't understand it. But it doesn't mean that they weren't playing around with it.
Josh Clark
No. And getting zapped because they were messing with static electricity.
Chuck Bryant
That's right. Which we'll explain all that later, too. But there was one dude called Thallus of Meletus. He was a philosopher in Greece. And in 600 BC he is thought to have been the first dude to mess around with electrostatics, static electricity, by rubbing amber with fur. And he noticed that dust and feathers and things were Attracted to it. He didn't know what the heck was going on, but he knew something was up.
Josh Clark
Right. And the amber plays a pretty big role. It's actually amber, the Latin. Or. I'm sorry, is it Greek? The Greek word for amber is electron.
Chuck Bryant
Yeah. With a K. Yeah, that was like, way heavy metal.
Josh Clark
Yeah. You know, but that's so like our word electricity is derived from the Greek word for amber, from that first experiment with static electricity.
Chuck Bryant
Yeah. And it was actually coined by a dude named William Gilbert. He was an Englishman, a physician, and he was studying sort of the same things with static electricity that Meletus was. And he was the first person to say it's electric when he saw these.
Josh Clark
Forces at work with an exclamation point and his finger in the air.
Chuck Bryant
Yeah.
Josh Clark
We should probably differentiate. Like static, there's a couple of types of electricity. There's static electricity and then there's current electricity.
Chuck Bryant
Right.
Josh Clark
And current electricity is what we are able to generate artificially. Static electricity exists in nature just naturally.
Chuck Bryant
Yes.
Josh Clark
And that was the first experiments carried out. Then there's other types of current electricity, like lightning. But at this time, when these people are messing with electric or static electricity or saying it's electric for the first time.
Chuck Bryant
Yeah.
Josh Clark
The concept of electricity was that it was fluid.
Chuck Bryant
Well, it was fluid. He was on the right track. Something is flowing. But they thought it was literally a fluid, which they called. Which in those days was called a humor. And he said it leaves what he called then an effluvivium. Effluvium, which is atmosphere around it. When you create this rubbing action, it removes that fluid. Right, but it wasn't fluid. They were not dummies back then. But they were just figuring it all out.
Josh Clark
No, they weren't dummies, because even Ben Franklin thought it was a fluid. It was the prevailing idea or concept of electricity. Ben Franklin and a couple of his contemporaries, including a guy named Thomas Francois Dalabard, were studying electricity big time. And it was when they really investigated lightning that our understanding of current electricity started to take shape.
Chuck Bryant
Yeah, the old story of Ben Franklin flying his kite may or may not have happened. There are some people that think that didn't happen.
Josh Clark
Now, if he didn't do it, other people did. There were guys who died carrying out that experiment. Yeah, but it was definitely carried out. I don't know if Ben Franklin did or not.
Chuck Bryant
Yeah, that's sort of the story that he flew the kite with the key. And some people think it either didn't go down like that or didn't go down with him at all. But it's a great story either way.
Josh Clark
Yeah. And I think he at least proposed it, the experiment.
Chuck Bryant
Well, yeah, and he was the first guy to say that electricity has a positive and negative charge and that it flows from positive to negative. So he's a smart guy.
Josh Clark
Very smart. He's a polymath.
Chuck Bryant
Then there was another smart dude named Coulombe, Charles Augustin de Coulombe, and he is the one that wrote Coulomb's Law. And he said, like, charges repel, opposite charges attract. And that's kind of like the basis for it all.
Josh Clark
Yeah. And the force of these charges is proportional to the. To their product. So if you multiply the charges, they are going to be very strong or cancel one another out or push one another away.
Chuck Bryant
Yeah. He basically said, you can now calculate this.
Josh Clark
Right.
Chuck Bryant
Because of my handy dandy little law.
Josh Clark
Yeah. And with a boom. He said boom, not bang. Okay. That came earlier.
Chuck Bryant
Later on, a guy named J.J. thompson, in 1897, said at a science conference, hey, I found something smaller than the atom. And everyone said, silly man, atoms are invisible. You can't. It even means invisible, you liar. And he said, no, I promise there's something smaller. It's got a negative charge, and I'm going to call it a corpuscle.
Josh Clark
No, he didn't.
Chuck Bryant
Yeah, it's Latin for small bodies. And then, I think, I don't know who later said, let's change it to electron.
Josh Clark
Yeah, it sounds way cooler.
Chuck Bryant
But the discovery of the electron was basically the birth of what we know as electricity today.
Josh Clark
Yeah.
Chuck Bryant
The understanding of the electron is what it's all about.
Josh Clark
And would you say like, 1897?
Chuck Bryant
Yes.
Josh Clark
So before that time, I guess he didn't understand the electron, but he understood electricity. A guy named Michael Faraday was working on the case.
Chuck Bryant
Stud.
Josh Clark
Yeah. Basically everybody's like Ben Franklin, electricity, hand in hand. Really. It's Michael Faraday, who's British, who really came to lay the foundation for electrifying the world. He just. He created the first dynamo, which is a generator, which we'll talk about.
Chuck Bryant
He first electric motor.
Josh Clark
Yeah, yeah. He just. He got electricity and he explained it to other people very well.
Chuck Bryant
Can you even fathom how smart these people were to be that in the dark and figuring all this subatomic stuff out?
Josh Clark
Yeah. Back then, hats off, top. Hats off to these guys.
Chuck Bryant
Last chance, garage. Hat off.
Josh Clark
Yeah.
Chuck Bryant
And back on.
Josh Clark
Like, I have trouble understanding it now when it's explained through, like, kids for Science websites, you know, we're not inventing this.
Chuck Bryant
Figuring this stuff out for the first time. Right.
Josh Clark
Exactly. And it's a pretty dangerous field to try to figure out blind, too, you know?
Chuck Bryant
Yeah. I mean, more than one scientist got a shock from a Leyden jar.
Josh Clark
Oh, yeah.
Chuck Bryant
And you can make those. Do you make those in science class?
Josh Clark
No.
Chuck Bryant
Yeah, you can make those.
Josh Clark
Well, it's. We should say a Leyden jar is a very primitive capacitor. You use a metal rod in a jar that's sunk into, like, some water, and it can store a charge.
Chuck Bryant
Yeah.
Josh Clark
I think Ben Franklin's kite experiment attached the kite to or a rod or something to a laden jar to store the charge, too, if that happened. Right. But again, he did make the proposal. It's. Whether or not he carried it out is a question.
Chuck Bryant
All right, I guess now we can get to atoms, finally. Very tiny. And they make up molecules, and molecules make up everything, you see?
Josh Clark
Yeah. Atoms are the building block of matter.
Chuck Bryant
That's right.
Josh Clark
And, Adam, remember, we're always talking about nature loves homeostasis.
Chuck Bryant
Oh, man, does it.
Josh Clark
You've got a balance that nature always.
Chuck Bryant
Seeks, tries to achieve it.
Josh Clark
Same with atoms, or atoms are no exception. I should say within an atom, you have a nucleus which is made up of protons and neutrons. Protons are positively charged particles. Neutrons are neutral. And then orbiting that nucleus, making the cool atom symbol, are electrons, and they're negatively charged.
Chuck Bryant
That's right.
Josh Clark
And when you have an equal number of protons to electrons, you have a neutral atom.
Chuck Bryant
Yeah. There's no potential energy there. It's just in balance. And a lot of stuff is like that. A lot of stuff is imbalance. Some stuff is not.
Josh Clark
Well, some stuff falls out of balance easier than other stuff.
Chuck Bryant
Well, yeah, the electrons, sometimes they're super tightly bound to the atom, and they don't want to leave the house.
Josh Clark
Right.
Chuck Bryant
They want to stick around. Sometimes they're. They're crazy teenagers. And the slightest energy and movement makes them jump off from the atom and just say, I want to go attach myself to something else.
Josh Clark
They go on Rum Springer.
Chuck Bryant
Yeah.
Josh Clark
Yeah. And it depends on the material. And those types of material that have either tightly connected or loosely connected atoms either end up conducting electricity very well or don't conduct electricity very well.
Chuck Bryant
So.
Josh Clark
So they act as either electrical conductors or electrical insulators.
Chuck Bryant
Yeah. Like if you pick up a stick off the ground, its electrons, like staying close to home. So it's not going to conduct electricity. If you pick up a metal rod, those electrons are crazy loose. And they like to go off and do those things that teenage electrons do, and therefore it does conduct electricity.
Josh Clark
Right?
Chuck Bryant
Very well.
Josh Clark
Under normal circumstances, when you pick up that rod or you pick up that stick, the electrons are staying put no matter what. But we figured out along the way, thanks to the work of all of the people from the Greeks to Faraday to Ben Franklin to your guy with the corpuscle idea. Yeah, JJ was his name.
Chuck Bryant
Yeah, jj.
Josh Clark
Jj Corpuscle.
Chuck Bryant
I think it was Thompson.
Josh Clark
So thanks to the work of all these people, we figured out how to knock electrons loose. And it's ingenious and simple, but it's also very complex and it involves the relationship between magnetism and electricity.
Charles W. Chuck Bryant
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Bob Pittman
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Chuck Bryant
The way I approach risk is constantly try things and actually make it okay to fail.
Bob Pittman
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Josh Clark
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Charles W. Chuck Bryant
That I loved for the rest of my life.
Bob Pittman
We're also hearing how leaders brought their businesses out of unprecedented times. Like Stephane Bonsell, CEO of Moderna.
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Charles W. Chuck Bryant
Winner and Kyra K. Dixon, NBC sports reporter and host.
Mel Reid
You forgot to say all my Miss America, by the way. And we've got a new podcast, Quiet please.
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With Mel and Kira, we are bringing you spicy takes on sports and pop culture, some golf haps and interviews with incredible people who have figured out how.
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Josh Clark
Yeah.
Charles W. Chuck Bryant
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Mel Reid
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Charles W. Chuck Bryant
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Josh Clark
So, Chuck.
Chuck Bryant
Yes.
Josh Clark
We're talking about knocking electrons loose, which is ultimately the basis of producing electricity.
Chuck Bryant
Yeah. Like when you were a kid in elementary school, you probably did the little balloon trick where you make static electricity and make the balloon stick to your sweater, Right. All you're doing, you're rubbing that balloon on your sweater, and electrons are jumping from that balloon onto your sweater. And now there are two different charges going on. Because you're overcharged, the balloon is now undercharged. And because opposite charges attract, it sticks to your sweater.
Josh Clark
Right.
Chuck Bryant
And that's static electricity.
Josh Clark
And static. You know, you have static and dynamic. And dynamic indicates motion, static indicates staying still. And they use that to describe this type of electricity because the electrons don't flow. They just sit there and wait for a connection. Like when you touch something that's charged, like a doorknob after you've shuffled with your feet in socks over carpet, when you touch that doorknob, you're forming that connection, and all of a sudden the balance is achieved once more, and the electrons flow.
Chuck Bryant
Like you're literally a conductor of electricity in that moment.
Josh Clark
Right. So with current electricity, those electrons move. They move along a conductive material, say, like copper wire or something like that.
Chuck Bryant
That's a hot one.
Josh Clark
Right. So let's talk about how you produce an electrical current. Right.
Chuck Bryant
Okay.
Josh Clark
Let's talk about generators and turbines and all that awesome stuff.
Chuck Bryant
It sounds like you need to generate that electricity with a generator.
Josh Clark
Right. I think that's what generators are called, that why they're called that.
Chuck Bryant
Yeah. It's funny just how basic some of these things are. Like you say a computer, Right.
Josh Clark
But you've heard it so many times, you take it for granted and it loses its meaning. It's like looking at a word too frequently.
Chuck Bryant
Yeah. I think a lot of these words are like that. Like a generator or a corpuscle or a What's it called when they stop down the electricity, which we'll get to?
Josh Clark
Transformer.
Chuck Bryant
Yeah, it transforms something, but you say them so much, you're like, what's a transformer do?
Josh Clark
Right.
Chuck Bryant
You know?
Josh Clark
Yeah.
Chuck Bryant
Anyway, I've been reading too much Science for Dummies, I think. All right, so generators. Well, I guess it all comes down to magnetism.
Josh Clark
Yes.
Chuck Bryant
In the case of generators. And if you want to listen to two shows, lightning and magnetism, before this one, it might help you understand electricity a little bit more.
Josh Clark
All right, so just go listen to those. We'll wait.
Chuck Bryant
Do that right now. We'll wait two hours.
Josh Clark
So what I think Faraday figured out was that because of this relationship between a magnet and electricity, you can take a magnet and you can move electrons in, say, a conductive material. You can knock the electrons loose, basically using a magnet.
Chuck Bryant
Yeah. It's like what happens when you attract a paperclip to a magnet. It's just the transfer of electrons jumping.
Josh Clark
Around, and you create a flow by flow, flipping the polarity. And you can do this by rotating metal, right?
Chuck Bryant
Yeah.
Josh Clark
Say, like coiled copper within the two poles of a large magnet. And when you do this, you're reversing polarity all of a sudden.
Chuck Bryant
Yeah.
Josh Clark
And you are knocking the electrons loose in those coils. And the way that you spin the coils very quickly is. Is by hooking the coils to, say, a shaft. Yeah, we kind of did this backwards. Let's start at the beginning. You want to. Okay. Let's go to Niagara Falls.
Chuck Bryant
Okay.
Josh Clark
Back in 1895, George Westinghouse, who is Nikola Tesla's boss, which, by the way, if you want to listen to another really good podcast, go listen to that one. Nikola Tesla one.
Chuck Bryant
Yeah.
Josh Clark
Remember, it was all about the AC DC war between Tesla and Edison.
Chuck Bryant
Yeah.
Josh Clark
Good episode.
Chuck Bryant
Kill Shocking Animals to Death.
Josh Clark
Yeah, it's pretty awful.
Chuck Bryant
What a jerk.
Josh Clark
But in 1895, George Westinghouse set up a hydroelectric power plant along the Niagara Falls.
Chuck Bryant
Yeah.
Josh Clark
And what he did was he had a means of taking the movement of water, which is kinetic energy. The water at the top of the falls has potential energy, and then once it falls over, that potential turns to kinetic energy. Well, Westinghouse set up a turbine to catch this movement of water. Right. Which is actual energy, and have that movement spin a turbine, a propeller, or a fan.
Chuck Bryant
Yeah. It's the same concept as an old grist mill, except it's not creating energy. It's just moving the stones that grind the wheat or corn.
Josh Clark
Right. The grist mill Is.
Chuck Bryant
Yeah.
Josh Clark
In this case, it's capturing that energy by. Or it's transferring it, we should say, by converting that kinetic energy from the water into mechanical energy, spinning the turbine. The turbine is connected to that shaft I was talking about where we suddenly changed course. And at the end of that shaft, which is now spinning, thanks to the turbine, thanks to the movement of the water, is some coiled copper. And that coiled copper is spinning within those two magnets.
Chuck Bryant
Yeah, that's the key.
Josh Clark
Right. And because of that, the electrons are being knocked loose. You have a power line leading from the coiled copper out, and all of a sudden you have an electric current.
Chuck Bryant
Yeah. And if you've ever been to the Hoover Dam or something, you don't have to have a waterfall or a river to make this thing work. That's why they build dams. You stop up the water, and then at the base of the dam, you have the means to release that water and then it becomes that flowing water.
Josh Clark
Right. And then also for thermal power plants, they use nuclear power to create a nuclear reaction to produce heat, or they burn coal to produce heat, and then they use that heat to heat water, and then they use that water to create steam, and then that steam turns a turbine.
Chuck Bryant
And these are all just different methods, whether it's solar or steam or nuclear. I almost said it, which is weird because I definitely don't say it that way.
Josh Clark
Well, you were very excited.
Chuck Bryant
I think I said it enough as a joke.
Josh Clark
Right.
Chuck Bryant
That it slips in. But anyway, all those are just means to turn that turbine.
Josh Clark
Right. And all it is is you're using that stored energy or that kinetic energy like over here to create electricity so that you can transfer it into work down the line.
Chuck Bryant
That's right.
Josh Clark
It's so cool.
Chuck Bryant
Yeah. And this article, we used a few different articles for this one, like we said, including some science for kids websites, which, by the way, I highly recommend.
Josh Clark
If you don't get something.
Chuck Bryant
Yeah, it's a great place to go visit are these kids websites because they break it down like super simply. But in our article, it describes a generator as if it was water in a pump, which made a lot of sense to me. The generator is the pump, but instead of pushing water through a pipe, it's pushing electrons down a line.
Josh Clark
Right.
Chuck Bryant
Power line.
Josh Clark
And that whole like using water as an analogy for electricity fits very well.
Chuck Bryant
Yeah, but you need something to push it. It's not. It's not a self pusher, so you need that force. And that force is voltage, right? Yeah, it's electromotive force.
Josh Clark
It's the same with water. Like, you have water pressure that forces the water down the line. Right. And with electricity, you have a force that moves electricity. And it's voltage, like you said, measured in volts.
Chuck Bryant
Yeah.
Josh Clark
And the electrical current is measured in amps. And the amps represent the total number of electrons flowing through any one point of a circuit at any every second. And there's a lot of them.
Chuck Bryant
And if you have voltage and you add that to current, which is amps, you get power, which is watts.
Josh Clark
Right. And I think it's multiplied by it.
Chuck Bryant
Oh, really?
Josh Clark
Yeah, it is.
Chuck Bryant
Okay. I wasn't even thinking of it as a math formula, but it is, it.
Josh Clark
Is a math formula. And the reason why it's a math formula is because they're related. Like you can flip flop them, you can adjust them. And that's the whole basis of industrial power transmission. That. Which we'll get to later.
Chuck Bryant
Yeah, and I know it sounds a little confusing with volts, amps and watts, but they are all different. Like if you said, you know, that guy was shocked he had 120 volts coursing through his body. That's not true at all. Because the volt is the force. He's got amps coursing through his body. Yeah, but you'd be a huge geek to point that out to someone. Someone said that.
Josh Clark
And a good rule of thumb is the higher the volts, the more dangerous the shock.
Chuck Bryant
Yeah.
Josh Clark
Which is why in America most outlets and homes are 2 or 120v, where if you touch it, you're gonna feel it, but it's probably not gonna kill you.
Chuck Bryant
In the United States It's 120, but it's different in other countries.
Josh Clark
Right. Which is why, like a European appliance can't be plugged into an American appliance.
Chuck Bryant
Because you got to get those adapters.
Josh Clark
Yeah. So you were talking about current, which is the number of electrons flowing through a circuit. You have the volts, which is the force or pressure that's pushing them down the line. And then you have those two multiplied by one another to create watts, which is power.
Chuck Bryant
Yeah.
Josh Clark
You also. There's one, there's another factor to electrical currents.
Chuck Bryant
Yeah.
Josh Clark
And that is resistance.
Chuck Bryant
Oh, yeah, we didn't talk about that. We acted like it was all either an insulator or conductor. But you can be a resistor.
Josh Clark
Well, I mean, everything, everything has a certain level of resistance.
Chuck Bryant
Yeah, but if you're an official resistor, that means current moves. It just doesn't move like as fast as it might in metal.
Josh Clark
Right.
Chuck Bryant
Or not at all, as in wood.
Josh Clark
Yeah. Or glass is another good resistor insulator.
Chuck Bryant
Yeah.
Josh Clark
And so is rubber.
Chuck Bryant
Yes.
Josh Clark
But even something is like conductive as copper wire has a certain amount of resistance. And again, that water flowing analogy comes into place. Like if you pump some water really, really hard.
Chuck Bryant
Yes.
Josh Clark
Try to get a lot of water through a very small pipe, it's still not going to come out very high, very fast because you're trying to force too much water through that little pipe.
Chuck Bryant
Right.
Josh Clark
So in the exact same way, a thin wire where you're trying to push a lot of amps through and a lot of volts through, it's going to resist. And when you have resistance in an electrical circuit, you have what? You lose some of those electrons that are flowing in the form of heat, which is produced by electrons bumping up against other atoms that aren't sharing their electrons. And that's the result of friction.
Chuck Bryant
Yeah. And resistance is measured in ohms. Ohm. Should we talk about circuits?
Josh Clark
Yeah.
Chuck Bryant
Are we there?
Josh Clark
I think so.
Chuck Bryant
So all this is well and good. That's, you know, you can supply power, and we'll talk about this more in detail, too, to homes from a power plant, but you can also have a little battery supplying that electrical energy to a iPhone, let's say.
Josh Clark
Right.
Chuck Bryant
And in that case, you need something called a circuit, which is basically just a closed loop that allows the electrons to travel. And in most electronics, it's like. Like you said, like copper wire, maybe. And it travels from, you know, there's a switch that turns it on and off, which is why a circuit is called a circuit breaker. Like if you break that circuit by turning the switch off or if the wire like snaps or something, it's gonna. No more electrons are gonna be flowing.
Josh Clark
Right. Because there's. And the reason they're not going to be flowing any longer is because the positive pole and the negative pole from that circuit are no longer connected.
Chuck Bryant
That's right.
Josh Clark
Another way to look at voltage is that it is the difference between electrons on one side and electrons on another side of a circuit. And remember, we talked about nature always wanting balance.
Chuck Bryant
Yeah.
Josh Clark
Electrons flow from negative to positive, right?
Chuck Bryant
That's right.
Josh Clark
And as they flow, the reason they're flowing, the whole reason they're moving at all, is because there are not as many electrons on the positive side as there are on the negative side.
Chuck Bryant
Yeah.
Josh Clark
So they want to leave the negative side to go achieve balance on the positive side and ultimately make whatever circuit it's traveling neutral.
Chuck Bryant
Yeah.
Josh Clark
You stick something in that circuit, and as those electrons are moving from the negative side to the positive side, because, again, electricity is just the flow of electrons.
Chuck Bryant
Yeah.
Josh Clark
You can convert that movement into productive work.
Chuck Bryant
Yeah. Mechanical energy.
Josh Clark
Right. And anything you attach onto a circuit to exploit that flow of electrons for work is called a load.
Chuck Bryant
Yeah. It could be a light bulb or, you know, whatever. Whatever mechanical energy you're trying to create is your load.
Josh Clark
Right. And there's all sorts of things you can do by attaching a load to a circuit like a light bulb. A light bulb basically uses that electricity flow to flow into a resistant filament, very thin wire that purposely resists that flow of electricity, generating heat and in turn heating up to produce light. That's how a light bulb works.
Chuck Bryant
Yeah.
Josh Clark
You can also recharge batteries, which go in and force electrons back into the negative position so that the battery's recharged and those electrons are ready to flow again once you connect the circuit.
Chuck Bryant
Yeah.
Josh Clark
There's also appliances that use resistors to produce heat, like a hairdryer or a toaster. There's all sorts of stuff you can do to connect into the circuit, but it's all the same, whether it's a battery or a toaster or a whole house. If you want to look at it that way. You're plugging a load onto an electrical circuit and exploiting the flow of electrons.
Chuck Bryant
Yeah. And I kind of misspoke a minute ago when I said it's creating the mechanical energy. You need a motor to actually do that. So if you have an electric drill, that's great that you have electrons flowing, but it's not going to turn anything unless you have that motor. And an electric motor is basically just a cylinder stuffed with magnets around the edge. And if you've ever used an electric drill and you fire it up, when you look and see in the vents, you can actually see sparks.
Josh Clark
It's pretty cool.
Chuck Bryant
It's very cool.
Josh Clark
It's like those little guns you used to get at the circus when you were a kid.
Chuck Bryant
Yeah. God love those. So it's packed with those magnets around the edge, and in the middle, you've got your core, which is, you know, like an iron wire, and it's wrapped around. You know, the copper's wrapped around the edges. So electricity flows to that core, creates magnetism, and then that pushes against the outer cylinder and makes that motor spin around, and then that's where you get your mechanical energy.
Josh Clark
Right. And an electric motor is probably the best example of how you're converting energy from one form to another and then reconverting it. Because an electric motor is basically a generator in reverse.
Chuck Bryant
Yeah.
Josh Clark
And so you use that mechanical energy, the spinning of the turbine down the line and convert it in your electric drill back into mechanical energy to spin the drill. And in between is that flow of electrons that's causing the whole thing or that's carrying that energy from point A to point B.
Bob Pittman
Hi, I'm Bob Pittman, chairman and CEO of iHeartMedia. I'm excited to introduce a brand new season of my podcast, Math and Stories from the Frontiers of Marketing. I'm having conversations with some interesting folks across a wide range of industries to hear how they reach the top of their fields and the lessons they learned along the way that everyone can use. I'll be joined by innovative leaders like chairman and CEO of Health Beauty, Tarang Amin.
Chuck Bryant
The way I approach risk is constantly try things and actually make it okay to fail.
Bob Pittman
I'm sitting down with legendary singer, songwriter and philanthropist Jewel.
Josh Clark
I wanted a way to do something.
Charles W. Chuck Bryant
That I loved for the rest of my life.
Bob Pittman
We're also hearing how leaders brought their businesses out of unprecedented times, like Stefan Bonsell, CEO of Moderna.
Josh Clark
It becomes a human decision to decide to throw by the window your business strategy and to do what you think is the right thing for the world.
Bob Pittman
Join me as we uncover innovations in data and analytics, the math, and the ever important creative spark, the magic. Listen to math and magic stories from the frontiers of Marketing on the iHeartRadio app, Apple Podcasts or wherever you get your podcast.
Mel Reid
Hey, this is Mel Reid, LPGA tour winner and six time ladies European tour.
Charles W. Chuck Bryant
Winner and Kyra K. Dixon, NBC sports reporter and host.
Mel Reid
You forgot to say warm and Miss America, by the way. And we've got a new podcast, Quiet Please with Mel and Kira.
Charles W. Chuck Bryant
We are bringing you spicy takes on sports and pop culture, some golf haps and interviews with incredible people who have figured out how to make golf.
Mel Reid
They're super power or just people we like. Plus tales from the road and everything in between. By the way, golf isn't just for the dads, Brads and chads.
Charles W. Chuck Bryant
Yeah, it's actually life's cheat code and we're not going to be quiet about it on or off the course. We're bringing on some of our friends like Michelle We, Heather McMahon, Amanda Baliotis.
Mel Reid
So if you want to keep up with us, and here is yap, tune into our new podcast, listen to Quiet.
Charles W. Chuck Bryant
Please with Mel and Kira, an I heart women's sports production in part Partnership with Deep Blue Sports and Entertainment. You can find us on the iHeartRadio app, Apple Podcasts, or wherever you get your podcasts presented by Capital One, founding partner of iHeart Women's Sports.
Will
Hey, Will, do you ever get overwhelmed by how much science happens these days?
Mango
Constantly. I'm like, ah, there's so much science, I can't keep track of it all.
Will
Then it's a good thing. Our podcast, part Time Genius is counting down the 25 greatest science ideas from the past 20, 25 years.
Mango
That's right, Mango. We're talking animals in a paper called.
Will
Quote, chickens prefer beautiful humans. This was actually the title of the paper. They all discovered that, much like humans, chickens are attracted to symmetrical faces.
Josh Clark
Got it.
Will
We're talking medical miracles.
Mango
He's an endocrinologist who found a way to stimulate insulin producing cells using, wait for it, the saliva of a Gila monster.
Will
There's no way to make that not sound crazy.
Mango
We even talked to some of the experts behind these breakthroughs. It's a week full of fact packed stories you won't want to miss. So listen to the part time Genius countdown of the 25 greatest science ideas of the past 25 years, starting Monday, March 3rd on the iHeartRadio app, Apple Podcast, or wherever you get your podcasts.
Josh Clark
There's one other thing. If you look at a plug that you're plugging an appliance into, because again, you're just attaching a load to that flow of electrons and diverting it through your appliance and then it goes back on its merry way, right?
Chuck Bryant
Yeah.
Josh Clark
If you look at a plug, sometimes you'll see three prongs. And the third prong, the one on the bottom, seems different from the other ones. It's round. And that is actually a grounding wire.
Chuck Bryant
Yeah, very important.
Josh Clark
Very, very important. Because as awesome as we've gotten with producing and directing electricity, we can't control the amount of electrons that flow through an outlet to down to a single electron.
Chuck Bryant
Right.
Josh Clark
And so there's such a thing as leakage of electrons, which is crazy. And there's also electrical buildup that can happen where if you're not using all of the amps through an appliance, the residual amps can build up and they, they charge the appliance. And again, as with static electricity, a charge is just sitting there waiting to be neutralized, sometimes through you, which can make it very dangerous. To prevent this, they connect the appliance through either that third prong in a plug or through an actual grounding wire to a copper wire that's driven into the ground. And that's where the word comes from. Ground. You're actually transferring that residual electric energy to the ground, which is basically an infinite reservoir for charge dispersal to Earth. Yeah.
Chuck Bryant
So, like, when you look at a power line and you see that bare wire coming down from the power line and driven into the ground by a stake, that is the ground. And it goes down, like, 6 or 10ft. Yeah. Or if you look at every house, you're gonna see near the meter, the electrical meter, you're gonna see probably a copper rod driven into the ground, and that's your house's ground.
Josh Clark
Exactly. Same thing with a lightning rod. It's a ground for your entire house so that the lightning doesn't go through your house. It goes through the lightning rod. And the point of all of those is that the Earth is. It can take it. Go ahead, give it as many electrical shocks as you want. It's gonna be fine.
Chuck Bryant
So we think.
Josh Clark
And it's a very good. It's very good at just dispersing those charges. So that's what grounding comes from. Very important stuff.
Chuck Bryant
Yeah. And we mentioned transformers earlier. Power plants create massive amounts of electricity, and you can't just shoot that down a power line and straight into a house because it will blow up everything in your home immediately. But they do need that kind of juice in order to transfer, like, hundreds of miles away from the power plant. You know, if you don't live close, it's still got to get to you.
Josh Clark
Yeah.
Chuck Bryant
So the way they do that is through transformers. They transmit the power with a lot of voltage. So more force, less amperage, less resistance. Less resistance, which means you lose less. And then once it, you know, they stop it down along the way. And by the time it gets to your home, it's transformed down to here in the United States, 120 volts.
Josh Clark
Yeah. More elsewhere.
Chuck Bryant
Nice and safe.
Josh Clark
Right. And then you just plug your appliance into it, and all of a sudden, that electrical energy transmits to your toaster strudel being warmed.
Chuck Bryant
Your hot pocket with tainted meats.
Josh Clark
Wow.
Chuck Bryant
Did you hear about that? Yeah.
Josh Clark
Remember that whole horse meat thing with IKEA last couple years? It wasn't just ikea, but they were definitely called out, maybe most strongly for.
Chuck Bryant
I think, the hot Pockets, too. They called it unsound meat, which is just a word that sounds weird in front of meat.
Josh Clark
Yeah. Unsound. It's not.
Chuck Bryant
You don't want to go near it.
Josh Clark
Unsound, unclean. It's biblical.
Chuck Bryant
All right, so now I think we, even though we've covered it in the Tesla podcast, we do need to go over AC DC a little bit.
Josh Clark
Seriously, go listen to that podcast. That's a great one. Great episode.
Chuck Bryant
Best Australian band of all time.
Josh Clark
They were good. Yeah, yeah, are good, David. Are they still around?
Chuck Bryant
Yeah, man.
Josh Clark
David Bowie played a pretty mean Tesla.
Chuck Bryant
No, I'm not talking about Tesla. I'm talking about AC dc.
Josh Clark
Oh, okay.
Chuck Bryant
Yeah, Tesla was all right.
Josh Clark
Sure.
Chuck Bryant
And they're not around.
Josh Clark
That's why I was really confused for a second. I was more confused about that than I was by any aspect of electricity.
Chuck Bryant
I'm like, yeah, man, of course they're.
Josh Clark
Around and they're Australian. Yeah, no, ACDC is great. And they're still around, huh?
Chuck Bryant
Yeah, I think they're putting an album together right now.
Josh Clark
Good for them. I'll bet. It sounds exactly like all the rest. It still rocks. Blues based rock in velour or velvet.
Chuck Bryant
Yes. So there was a battle being waged between Tesla and Edison. And Tesla was all about the AC current, alternating current. Edison, as we know, said, no, no, no, that's far too dangerous. And I'll prove this to you by electrocuting animals and dogs and cats and even an elephant named Topsy.
Josh Clark
Yeah. And he was alleged to have helped botch the first electrocution by Electric chair by A State.
Chuck Bryant
Oh, yeah.
Josh Clark
I don't remember the details of that, but it's definitely in our episode.
Chuck Bryant
He exploded, the guy.
Josh Clark
Yeah, he was a real jerk, remember?
Chuck Bryant
Yeah. And I think we remembered. I remember talking about. There should be a movie too, about that battle.
Josh Clark
Yeah. I can't believe there's not.
Chuck Bryant
It sounds super nerdy, but it would actually be interesting.
Josh Clark
It'd go over well these days.
Chuck Bryant
Agreed. So batteries these days use direct current power, DC power. And that means the positive and negative terminals are always positive and negative. And it always. Electricity always flows in the same direction.
Josh Clark
From negative to positive.
Chuck Bryant
Yeah. It does not alternate.
Josh Clark
Yeah. Just think about it this way. Negative. An electron's negative.
Chuck Bryant
Yeah.
Josh Clark
So in any terminal, that's where all the negative charge is bad vibes. And then positive is where the electrons want to be because they're seeking to balance it out and create neutral so that there's no pole.
Chuck Bryant
Good vibes.
Bob Pittman
Yeah.
Josh Clark
Or at the very least, so. So vibes.
Chuck Bryant
Yeah, True. But not negative vibes.
Josh Clark
No.
Chuck Bryant
And then you have alternating current or AC, which means the current reverses 60 times per second here in the US, 50 times per second in Europe. So it's just Reversing back and forth, alternating that current and I guess. So who won out in the end? Tesla on a large scale?
Josh Clark
Well, yeah. I mean, that's what our generation does. Yeah.
Chuck Bryant
But Edison has his batteries. I guess that he could throw it.
Josh Clark
Which are pretty important, too. But, yeah, I think we kind of came out in the same way on that episode. Yeah, we're like, they both kind of won. Yeah, but Tesla was the cooler dude. Although Tesla died penniless in New York in the 1940s.
Chuck Bryant
Oh, yeah.
Josh Clark
And Edison died of rich fat guy.
Chuck Bryant
He died of consumption and gout.
Josh Clark
That was Ben Franklin.
Chuck Bryant
I guess we can finish with. If you get your power bill and you're amazed and you wonder how they calculate this stuff, it's pretty easy. Like we said here in the US we deliver electricity into your home at 120 volts. So you gotta remember that. One, two. It's important. Our article uses space heater as an example, which I think is pretty good. You plug in that space heater. Let's say it's the only thing going in your house, which is not realistic. But go with me. You plug in the space heater and it comes out to 10amps. So you multiply that 10 times 120, because that's your voltage, and you have.
Josh Clark
Got 1200 watts of heat, or 1.2 kilowatts.
Chuck Bryant
Yes. Because that's how the power company is going to measure it.
Josh Clark
Right.
Chuck Bryant
Cause they deal in big chunks.
Josh Clark
And if you leave that heater on for an hour, you just use 1.2 kilowatt hours, which is how you build.
Chuck Bryant
Yeah. And if they charge you a dime per kilowatt hour, it's going to cost you 12 cents an hour to run that space heater.
Josh Clark
Right.
Chuck Bryant
Pretty simple.
Josh Clark
Yep.
Chuck Bryant
And neat. And that's why when you go to buy an appliance, you should look at that little tag that says how many kilowatt hours you're going to be burning.
Josh Clark
That's right.
Chuck Bryant
The lower the better.
Josh Clark
So, electricity, huh? You got anything else?
Chuck Bryant
No. Don't play around with it.
Josh Clark
No, don't. Yes. Always wear rubber soled shoes.
Chuck Bryant
Because rubber is an insulator.
Josh Clark
It is? Why? Because it hangs on to its electrons.
Chuck Bryant
That's right.
Josh Clark
The atoms that make up rubber.
Chuck Bryant
It's just that simple.
Josh Clark
If you want to know more about electricity, you can type that word in the search bar@howstuffworks.com. you can also go on all sorts of kids science sites and find out more about it, too. And since I said search bar, it's time for listener mail.
Chuck Bryant
I'm gonna call this rare birthday shout out. Hey, guys, my name is Pearl, and I just want to tell you how much a fan I am of your show. I was introduced to the podcast by my best friend Molly. We've been best friends for 12 years, and many of our conversations begin by commenting on the podcast. For example, we could not stop laughing at your 1920s voice toward the end of the Underground tunnels episode. We laughed over and over.
Josh Clark
That is a good voice.
Chuck Bryant
I think she's talking about this one. See that one?
Josh Clark
Yeah.
Chuck Bryant
Electricity, Tesla, Edison. Killing animals. All right, that was for you, Molly and Pearl. Whenever we're in the car together, we find a podcast of yours to listen to so we can enjoy it together. I was wondering if you could help her out. Molly's 26th birthday is April 9th. I think it would be totally awesome birthday gift. If you would send her a shout out during listener mail. I would be forever in your debt. Thanks for doing the podcast. I'm a middle school teacher who always listens during my prep periods, and so happy birthday, Molly. Happy 26th. This should be close.
Josh Clark
Yeah.
Chuck Bryant
Happy birthday to April 9th.
Josh Clark
That was very nice of us, Chuck.
Chuck Bryant
And thank you, Pearl Webb in Chicago. And your friendship means a lot to us.
Josh Clark
You know, your friendship with one another.
Chuck Bryant
Yeah. And then conversely, through us all together in their car.
Josh Clark
Well, if you want to get some sort of shout out sometimes. Chuck Danes too. He's very nice. You can send us an email to stuffpodcastheartradio.com.
Charles W. Chuck Bryant
Stuff youf Should Know is a production of iHeartRadio. For more podcasts, my heart radio, visit the iHeartRadio app, Apple Podcasts, or wherever you listen to your favorite shows.
Will
Hey, Will, do you ever get overwhelmed by how much science happens these days?
Mango
Constantly. I'm like, ah, there's so much science, I can't keep track of it all.
Will
Then it's a good thing. Our podcast Part Time Genius is counting down the 25 greatest science ideas for from the past 25 years.
Mango
That's right, Mango. We're talking animals in a paper called.
Will
Quote, chickens prefer beautiful humans.
Unknown
Right.
Will
This was actually the title of the paper. They all discovered that, much like humans, chickens are attracted to symmetrical faces.
Josh Clark
Got it.
Will
We're talking medical miracles.
Mango
He's an endocrinologist who found a way to stimulate insulin producing cells using, wait for it, the saliva of a Gila monster.
Will
There's no way to make that not sound crazy.
Mango
We even talked to some of the experts behind these breakthroughs. It's a week full of fact packed stories you won't want to miss. So listen to the part time Genius countdown of the 25 greatest science ideas of the past 25 years starting Monday, March 3rd on the iHeartRadio app, Apple podcast or wherever you get your podcasts.
Colleen Witt
Are you hungry? Colleen Witt here and Eating While Broke is back for Season four every Thursday on the Black Effect Podcast Network. This season we've got a legendary lineup serving up broke dishes and even better stor on the menu we have Tony Baker, Nick Cannon, Melissa Ford, October London and Carrie Harper Howey turning Big Macs into big moves. Catch Eating While Broke every Thursday on the Black Effect Podcast Network iHeartRadio app Apple Podcasts Wherever you get your favorite shows, come hungry for season four.
Bob Pittman
Hi, I'm Bob Pippman, chairman and CEO of iHeartMedia. I'm excited to introduce a brand new season of my podcast Math and Stories from the Frontiers of Marketing. I'm having conversations with some folks across a wide range of industries to hear how they reach the top of their fields and the lessons they learned along the way that everyone can use. I'll be joined by innovative leaders like Chairman and CEO of Elf Beauty, Tarang Amin, legendary singer, songwriter and philanthropist Jewel.
Josh Clark
Being a rock star is very fun, but helping people is way more fun.
Bob Pittman
And Damian Maldonado, CEO of American Financing.
Josh Clark
I figured out the formula. I just have to work hard then that's magic.
Bob Pittman
Join me as we uncover innovations in data and analytics, the math and the ever important creative spark, the magic. Listen to Math and Magic on the iHeartRadio app, Apple Podcasts or wherever you get your podcast.
Stuff You Should Know – Episode: Selects: How Electricity Works
Release Date: March 8, 2025 | Hosts: Josh Clark & Chuck Bryant | Production: iHeartPodcasts
In this special select episode, Josh Clark introduces a 2014 episode on electricity as a heartfelt tribute to a young listener, Charlie Pendergrast, who inspired the topic with his insightful ideas. Josh shares his appreciation, saying, "If you enjoy this select, you can thank Charlie. Thanks, Charlie." (00:53).
Josh and Chuck delve into the basics of electricity, distinguishing between static electricity and current electricity. Josh explains, "Electricity is the flow of electrons... it's a carrier, not a primary energy source." (05:54). They discuss how electricity enables modern conveniences by efficiently transmitting energy over long distances, unlike natural methods like convection or conduction.
A core part of the discussion focuses on atomic structure. Josh outlines, "Within an atom, you have a nucleus made up of protons and neutrons, and electrons orbiting it." (14:40). They explore how the movement or stability of electrons within different materials determines their conductivity:
Chuck humorously relates electron behavior to "crazy teenagers," saying, "Sometimes they're crazy teenagers. And the slightest energy and movement makes them jump off from the atom and just say, I want to go attach myself to something else." (15:33).
The hosts provide a historical overview, highlighting key figures and milestones:
Josh emphasizes, "The discovery of the electron was basically the birth of what we know as electricity today." (12:26).
The conversation shifts to the generation of electricity, using the Niagara Falls hydroelectric power plant as a primary example. Josh explains how kinetic energy from falling water spins turbines connected to generators, which convert mechanical energy into electrical energy:
"George Westinghouse set up a hydroelectric power plant along the Niagara Falls... the movement of water spins a turbine connected to a generator, creating an electric current." (23:27).
Josh and Chuck break down the essential units of electrical measurement:
Chuck adds, "Power is measured in watts. And I think it's multiplied by it." (27:27), clarifying the relationship between these units.
Exploring resistance, the hosts discuss how materials impede electron flow, converting some electrical energy into heat. Josh uses a water analogy:
"If you pump a lot of water through a small pipe, it slows down. Similarly, a thin wire with high resistance slows electron flow." (30:14).
They highlight that resistance is measured in ohms (Ω) and affects how efficiently electricity powers devices.
The episode covers the importance of circuits, defining them as closed loops that allow electrons to flow. Key points include:
A significant portion discusses the Alternating Current (AC) vs. Direct Current (DC) debate, famously embodied by Nikola Tesla and Thomas Edison. They recount how Tesla's AC won out for large-scale power transmission due to its efficiency over long distances, while Edison’s DC remained prevalent in battery-powered devices.
"Tesla was all about the AC current, alternating current. Edison, as we know, said, no, no, no, that's far too dangerous." (43:03).
The duo explains the role of transformers in managing voltage levels for safe and efficient power distribution:
Josh notes, "They transmit the power with a lot of voltage, less amperage, less resistance... transformed down to 120 volts for home use." (41:53).
Using everyday examples like a space heater, they illustrate how electricity consumption is calculated:
They emphasize the importance of understanding energy usage for efficient appliance selection and cost management.
Before wrapping up, Josh and Chuck share essential safety advice:
They conclude with a reminder to explore more about electricity through resources like howstuffworks.com and kids' science websites for simplified explanations.
In a heartfelt segment, Chuck reads a listener's birthday shout-out:
"Happy birthday to Molly on April 9th. I'm a middle school teacher who always listens during my prep periods. Happy 26th, Molly!" (48:57).
He also encourages listeners to send in their own messages via email for future shout-outs.
Notable Quotes:
This episode provides a comprehensive exploration of electricity, blending historical insights with technical explanations and engaging analogies. Whether you're a curious listener or new to the topic, Josh and Chuck make understanding electricity both accessible and enjoyable.