Here the eye is a mirror.

When you look into an eye, you can see a small, tiny version of yourself.

That kind of looks like a doll version of yourself.

The Latin word for a little doll is a few Pilla.

That's where we get the word pupil for a young student and the word pupil for the dark hole in the middle of your eye.

It's a pupil, because when you look into it, you see the pupil of yourself, the tiny doll version of you, and you are in for a treat today something a little bit different than usual.

But I think you'll like it.

I've been working with Adam Savage on our tour Brain candy live, and I decided to give him a tour of my brain candy.

The little things I have on my desk, the desk I work at every day that are sweet to the noggin.

But before that, here is a sneak peek at brain candy.

Live.

But not really.

This is this is brand candy right here.

We've been literally Yeah, this is the show.

We've been the last couple of days here on all the little colored pieces of paper.

Right for you.

It's blurred because we don't want to give it away.

Yeah, well, maybe give that one away.

Psych.

You gotta come to the show.

Oh, yeah.

Let's not mess this up.

This is how I think through a narrative, it's either like this or on a white board.

Yeah, I can't actually type it out.

Linear.

Yeah.

And you can see how dense parts are.

You concede by colors where the audience is involved, where there's gonna be something dangerous and how they may be.

Spread those out properly.

Okay, But wait, this is not why we're here.

We're here because we're in Michael's.

Amazing.

We saw space in Los Angeles and I having to notice that your desk is awesomely messy and yet covered with stuff that I wanted to get my hands on, and we realized we should just shoot that.

So, um, you had a little bit of concern.

Yeah.

I mean, I wanted to clean it up, but I kind of convinced me No, the way it is is the way we're gonna film it.

So this is just pure, unadulterated truth.

That's really what I'm about.

Let's go take a look.

All right.

So why why?

Why do you feel like a little bit reticent to show off your awesome?

By the way, your death.

You couldn't set design this with this much chaos.

Let's get a photo to go off.

But I'm nervous because I mean, I don't know, there could be something here that I'm like.

Oh, that's embarrassing.

Like, Okay, here's 1/2 drink energy drinks yesterday.

I'm gonna finish this today.

I like a flat like a temperature.

I really want to show you this Stirling engine.

This is so precisely made.

It is powered just by the heat of your hand.

Put your palm out and then we'll let that warm up for just a second.

Meanwhile, Yeah, Yeah, all that blood in your hand.

But the thing is, it doesn't need a lot of heat underneath it.

It just needs a temperature difference between the surface on top.

Here, disk on top, in the disk.

It's touching your hand.

So while you're holding that, we need to get that bottom warmed up a little bit.

Funny phrase.

I, uh Oh.

Here.

Let's admire Cem India, India, India.

It is the only element in the universe.

You can chew like what it's a soft metal gets softer when warm, but it's also nontoxic, and it's it's quite rare.

I heard it's on the Endangered Elements list and 100 years there might not be really any found in the ground.

So is this a particularly large chunk of India?

Then in 100 years it might be or it might not be.

I mean, this Is there some guesswork involved in knowing what the Earth has and what it's gonna run out of?

I'm denting it with my fingernail exactly, and you can take a bite out of it.

I wouldn't recommend it because it's quite cold in here and it could be a little firmer than your teeth want.

But I took a piece off and I melted it in this beaker because you could make Awsome mirrors with it.

This is like a wonderful wish list for me of other things to play with, because I think if we went to, if we went through my desk and my space in my shop would be a whole bunch of stuff like, Oh, I didn't know those existed.

We gotta get those.

Yeah, I'm gonna give it just a little turn.

All right.

But as you'll notice, even though I didn't put that much energy in, it won't slow down.

It's just gonna keep going.

How does this engine work?

Well, it's all about temperature.

A kinetic approach to defining temperature.

The air is made of molecules moving and shaking around their collisions produce what we call a Rh pressure.

Now we say that warm air expands, but really, it just has more energy.

When a gas warms up, its kinetic energy increases, its molecules literally move faster.

Translation.

Aly Rotational E and Vibrational E.

As a result, the average force they all exert when colliding increases if the container there in isn't perfectly rigid.

These collisions, stronger on average than those coming from the other side, will push the containers walls out, expanding the space within.

Now that's what happens in our engine.

Our engine has two pistons, a power piston responsible for moving the big wheel and a display, Sir.

Piston that shuttles around the air inside your hand warms the air inside, giving it more kinetic energy enough to push the power piston up, turning the wheel the wheels motion, then pushes the display sir down, moving the air away from the warmer bottom plate, causing it to rapidly cool and collide with the containers, walls and the power piston less often and with less force.

So the piston falls, turning the wheel with it.

The wheels momentum now drags the display, Sir.

Piston up, pushing air down to the warm plate where it gains energy, collides with the power piston more powerfully again, sending it back up beginning the cycle again.

It's surprising just how quickly air can cool and warm enough to move the piston.

It's fast, Ah, classic example of this is the old egg sucking trick.

Put something burning in a bottle and stick appealed, boiled ing on top.

Then suddenly, coop the egg plops into the bottle.

This is often explained, is being caused by a vacuum forming in the bottle because the oxygen inside got used up, leaving fewer molecules within to combat the pressure coming from without.

But that's not true.

The oxygen used by the fire doesn't disappear from the universe that would violate the laws of physics.

Instead, the flame turns it into things like water vapor and carbon dioxide.

There are, however, fewer molecules in the bottle when the egg is placed on top, but not because they were destroyed by a fire.

Instead, it's because the heat of the flame gave them enough energy to push their way out.

Air pushing against the AIG can't get out because the egg is shaped in such a way that lifting it opens this seal.

But once the flame burns out, the air inside starts to cool right away and, well, there's less of it inside.

Now, external atmospheric pressure is stronger, but the shape of the egg is such that pushing this way only tightens the seal.

The air inside continues cooling, pushing less and less until the pressure differences enough that the entire egg gets pushed in.

Then that's a piece of brain candy.

If he asked me, the egg isn't sucked into the bottle so much as it's just pushed in by the atmosphere because the pressure inside, which would normally be pushing back equally, has become weaker.

Likewise, you don't really suck liquid up through a straw.

You just caused the air in your mouth to push against it through the straw less than usual.

So the air outside can win against you and push the liquid into your mouth.

So make sure the haters know scientifically nothing sucks.

Anyway, back to how messy my desk is.

Um, I think this does give a good sense of what's in my mind and how episodes look too.

It's, like, kind of a mess.

This is what it looks like in your head before Yeah, and my tolerance for messes really high.

Okay, so if I needed to work, I wouldn't even move anything.

I'd be like, Look, the trackpad and key border accessible.

Yeah, yeah, yeah.

But it's also inspiring to have little things around to fidget with, For instance, these cast puzzles.

That one is called spiral craftsmanship on on some of these puzzles is just I didn't realize it was a puzzle.

I just not all those pieces come apart.

They do?

Yeah, that doesn't exactly.

And what they do is, they think, exercise the part of my brain that deals with three dimensional pressurization.

Don't think I'm very good at that.

It takes me weeks to see something in my head.

So I'm trying to like you know what?

These are really good for his finger strength because they're heavy on.

If you talk, you're having one for the whole day.

You're like, Oh, my gosh, I'm getting some some, uh, nice tone what you said about seeing something in your head.

That's the same way I build stuff I can't start building unless I can see the structure in.

Do you think you're really good visualizing things?

Yeah.

No, actually, there's a There's a turn that happens in as a maker where, uh, you start being able to just build stuff in your hand and turning it over to drive with did practice make it a better still, totally practice makes it better skill.

And every time I attack into material is the same thing.

Another, that's another one.

And that one is really fascinating because as you pull it apart, you don't see what's catching.

How come it's not coming apart, no matter which way you hold it and they're going to lock itself these air like really modern Appalachian like wire puzzles.

Now watch.

Watch this.

I don't know if we get a close up of this, but if you've got pins that are falling because of gravity this way and this way, There's no way toe unlock it unless you get some little, uh, centrifugal force happening.

Or more precisely, their inertia will cause them to move out and give it a little spin.

It just falls apart.

It just wants to fall apart once explained that.

Beautiful.

So you have got a lot of stuff here.

What?

I'm picking up all okay with you.

Yeah, OK, through these solutions for those out there watching you should really get into my love apology stuff.

At the moment, he's our spears that dissect into a bunch of pieces I bought at the dollar store.

Three for a dollar.

But yet the the mechanism or the design behind it is so clever and so easy to put back together.

I actually instagram, but I was so like, excited about the simplicity.

How comes important together?

This is way.

When we finish Mythbusters, we packed up my desk and it was exactly like this, Like a couple £100 of this stuff.

Yes.

This desk is super heavy for a few reasons.

One is Tungsten cube.

There it is.

Isn't that surprising?

This is larger, but not as heavy.

And that's solid steel That's a It's a plumb Bob and I used that in the What if the Earth stopped spinning video.

It was so heavy I could actually tape camera to it and have the camera on a pendulum.

So I'm noticing you got a lot of lot of materials, different materials.

I saw you open this one.

Oh, I think the open town.

So this is a density cube set.

Each cube is one inch by one inch by inch and gives you a really good idea.

Density.

How different things feel.

One of my favorite things to do is because different metals have different thermal conductivity.

Sze I will pull some what ones?

Copper ones haven't let's and I'll mix them up, so I don't know which one is which.

Just put him on my forehead and I'll try to guess which is which, by which one feels cooler.

And the one that feels cooler should be copper.

It has a higher on the field cooler.

Question is, which one has come.

I feel like the cooler one is It's Michael Michael.

That's where all the cruelest between these two the cooler is.

I can't get this wrong.

I think you actually can't get You actually can't.

But I'm thinking that this one's copper you got a I could tell you a little anxiety about that work I do.

I could do it.

I didn't get it right on camera.

I looked like my desk, by the way, happens to be littered with pens that you can't really see in the video.

They are pins that are erase herbal because the ink inside of them becomes invisible when heated.

You can erase the ink in this pen by just rubbing the other end of the pen over the heating up to the invisible point.

A really fun way to erase a lot of stuff at once is to just use a flame.

Also, I'm just gonna go for the other.