Hey, you.
Yeah, you.
What's up?
Yeah, I know.
The sky is up.
Haha, never heard that one before.
Think you're pretty smart, huh?
Alright, smarty pants.
I got something for you that's gonna blow your mind.
I'm serious.
Think you can handle having a blown mind?
I don't know.
This might be too much fun for you.
Never mind.
I was never here.
What's that?
You want me to tell you what it is?
Fine.
Here it is.
How would you like to learn how to make something levitate?
That's right, I said it.
Levitate.
As in, float in the air like a, like a thing that floats in the air.
Like bubbles.
Yeah, yeah, like bubbles.
Everyone likes bubbles.
Okay, so you're in.
Nice.
All I need you to do is grab something nearby.
Something that can't break or spill, just in case you're not very good at levitating.
Why don't you grab a pencil, or a pillow, or a stuffed animal?
Go ahead.
I'll wait.
Got it?
Good.
Now, hold it out in front of you.
Make sure there's nothing underneath it.
I don't know you, kid.
You look like a good listener, but I've been fooled before.
And neither one of us wants to get yelled at for breaking stuff.
All right, ready?
We're going to make whatever you have in your hand levitate.
And all you've got to do is focus on that object and think about things that are light.
Things that float, like clouds or feathers or bubbles.
Now, the only way this doesn't work is if you're breaking the law.
But you're a law-abiding citizen, right?
You look like a law-abiding citizen, but I've been fooled before.
Okay, hold out your object and picture it hovering in midair.
Focus.
Hmm.
Now when I say so, I want you to let go.
But only when I say so.
Ready?
On the count of 17.
Here we go.
One.
Two.
Just kidding.
On the count of three.
When I say three, you let go.
Ready?
One.
Two.
Three days ago, I ate some cheese and... Cheese!
Oh, wait.
Did you let go?
Okay, what happened?
Did it levitate?
No?
It's on the floor?
No.
Did you do what I told you?
Did you think about floating stuffed animals and bubbles?
Oh boy, I know what happened.
Remember what I said?
I said the only way this doesn't work is if you break the law.
Guess what, my friend?
You just tried to break the law.
That's right.
The law of gravity.
Don't you know the law of gravity?
What goes up must come down.
Uh-huh.
Well, don't worry.
In fact, you just proved one of the most important laws of the universe.
But there's a lot more to learn about gravity.
So buckle up.
Time for another whiff of science on... Who Smarted?
Who Smarted?
Who's smart?
Is it you?
Is it me?
Is it science or history?
Listen up, everyone.
We make smarting lots of fun on Who's Smart?
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Okay, you might be one of those smarty pants that knew what was going to happen.
You can't just make objects float.
Except bubbles.
But here's the thing.
Whether you knew what was coming or not.
Wouldn't it be awesome if you could make things levitate or fly?
Whoa, check it out.
Floating toast.
Awesome.
Help, my car just flew into space.
What's going on?
Why is everything floating away?
There goes my school and my house and my mom.
Do your homework.
Yeah.
Maybe not that awesome.
But thankfully, that's not the case.
Oh man, my toast landed butter side down.
Bummer, dude.
Awesome or not awesomeness aside, why isn't everything just floating around?
Because of, you guessed it, gravity.
Gravity is the hidden force that keeps everything anchored down.
And when I say everything, I mean everything.
You me ninjas elephants, monster trucks, Mount Everest and the Pacific Ocean are all stuck in place on the Earth because of gravity.
But what is gravity?
Is gravity a magnet?
Nope.
It would be pretty hard to walk if you were stuck to the Earth by a magnet.
Is it sticky like glue or tape?
Nope.
Thank goodness, because that would hurt your feet.
So what is gravity?
Ever hear of a guy named Sir Isaac Newton?
No.
Does this ring a bell?
What a lovely day.
I think I'll take a nap under this apple tree.
Ow!
That apple fell on my head.
Hmm.
Why would the apple fall on my head and not float upward?
It's as if there's an invisible force pulling this apple and everything else, including me, downward towards the Earth.
Fascinating.
I wonder if there's a name for this.
Yeah, man, you gonna eat that apple?
Okay, so maybe it didn't happen exactly like that.
But the point is, that's what gravity is.
An invisible force that pulls one object towards another.
And the bigger the object, the stronger the pull.
And what's the biggest object around you right now?
Is it your couch or your bed?
Is it your house?
Or maybe you're in a building.
Is it your city or your country?
Nope, it's the earth.
The earth is the biggest object around you, so everything is being pulled towards it.
You're stuck to your chair, which is stuck to your floor, which is stuck to your house, which is stuck to the earth.
But is the Earth the biggest object in the universe?
Not by a long shot, my friend.
Which is why the Earth is being pulled around the sun, which is 109 times bigger than the Earth.
Yep, all because of gravity.
Told you this was going to blow your mind, smarty pants.
Also, what are smarty pants?
Do you wear them?
Can you wash them?
Stay tuned, because we have a lot more to learn on Who Smarted?
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Okay, so we know.
Gravity is an invisible force that attracts a body to the Earth, which is why things don't go flying off into space and why if you drop something, it falls to the ground.
It's also why the Earth, along with all the other planets, orbit around the Sun and why the Moon orbits around the Earth.
Simply put, gravity is affected by two things the amount of matter in an object, which we call the mass, and the distance between the two objects.
The greater the mass of two objects and the closer they are, the more gravitational force there will be between them.
Now, when it comes to mass, you might be thinking we're talking about weight, but it turns out mass and weight aren't the same.
To help explain, I brought in my personal trainer.
Dino.
Yo, listen up, kids.
I want all of you to drop right now and give me 50 sit-downs.
What?
Yeah, we're not doing sit-ups or push-ups right now.
Now it's time to sit back, listen, and learn.
Because nobody knows more about lifting weights and adding muscle mass than me, Dino.
Okay, but are mass and weight the same thing?
Absolutely not.
Now, I know what you're thinking.
If something weighs a lot, it probably has a lot of mass.
And if something has a lot of mass, it's probably pretty heavy.
While that's true, it's not always the case.
So, could something have mass but no weight?
Hmm, pretty tricky, right?
Let me do a few quick concentration curls while you think about it.
Okay, you got your answer?
Did you say absolutely?
Absolutely.
Correct.
But how could that be?
How can something have mass but no weight?
Well, think about how you weigh yourself.
What do you do?
You step on a scale, right?
Yes.
Well, what exactly is the scale measure?
Weight!
Yeah, yeah, I know.
It's measuring how much you weigh.
But what is weight?
Weight is the force of the ground pushing up against the gravity that is pulling you down.
That's your weight.
Now obviously your body contains mass, which is also why gravity is always pulling you down.
But is there any way you can think of to continue having mass while having no weight at all?
Oh, I'm going to do a few bench presses while you think about it.
Okay, have you thought about it?
How could your body still have mass while having no weight at all?
All right, there's a simple way you can do this.
Ready?
One, two, three, jump.
That's right.
While you're jumping up in the air, you're technically weightless.
But you still have mass, which is why you come crashing back down to Earth.
And if you can't jump, or you don't like to jump, just imagine being up in space.
You'd be floating weightless.
But the mass of your body would go into orbit around the closest large body, like the Moon or the Earth or the Sun.
Okay, okay, that's enough of a mental workout for today.
Now, if you excuse me, I gotta teach a gravity pilates class.
Yo, yo, let's work out that core.
Pretend you're in space.
Well, that's all the time we got for today.
There's still a lot more to talk about when it comes to gravity, so we'll have to meet up again soon.
Luckily, thanks to gravity, I know you'll be sticking around.
Who put that apple tree there?
A real down-to-earth shout out to Nathan in Montrose, Michigan.
We hear you love all the cool facts and the funny fart jokes.
Who knew those went together so well?
Thanks for smarting with us, buddy.
Thanks for listening to Who Smarted?
Today's episode Gravity was written by Jerry Kolber and Adam Tex Davis and voiced by Adam Tex Davis, Kim Davis and Gia Davis.
Technical direction and sound design by Josh Hahn.
Who Smarted? was recorded and mixed at the Relic Room Studio.
Theme song by Brian Suarez.
Lyrics written and performed by Adam Tex Davis.
Who Smarted? was created and produced by Adam Tex Davis and Jerry Kolber.
This has been an Atomic Entertainment production.
Who's smarter?
