- Don't fall! Don't die!

Oh my god! (screaming)

Have you ever seen Frozen?

- Mm-hmm.

- Well, I'm still gonna recap it anyway.

Sorry.

Elsa is having this beautiful coronation.

Her sister is all like, oh my god, I met a really hot man!

And he's all like, let's get married!

I've known you for a day!

And Elsa's like, what the hell, I'm leaving.

And she's like ice shooting out of her hand.

The fountain: ice!

And all the people in the town are like, you're a monster!

And then she's like, ya know what?

I can't (bleep) take this anymore

because someone just called me a monster

and that is (bleep) rude.

The only way out is a lake.

She takes one little step

and bam!

The lake turns to ice!

She full speed runs across a lake in her little loafies--

That's loafers for those not in the know.

Every step she takes, it's like

ice, ice, ice, ice, ice, ice, ice

and she just runs with her cape flowing in the wind.

And then Anna takes one step and she's like-- (grunts)

She can't even take one (bleep) step on the ice.

- Pathetic. - Pathetic.

Later in the movie she takes it to

the next level and puts on little heels.

So what we need to test today is,

whether or not you can run on ice in loafers and heels.

- I feel like I wanna do this.

I'm a really big Frozen fan.

- You wanna run on ice?

- I do.

- Why?

- I mean, I just wanna be Elsa.

- Yeah, I mean, she's cool.

Oh my god, it is so cold in here!

- What?

- It's snowing.

- [Selorm] I guess...

- So, sir, who are you?

- My name is Nick Uhas and I'm a science YouTuber.

- Ooh professional. - Aah.

- So how is ice formed exactly?

- You need what is known as a nucleation site.

Like, a piece of dust or a hair, or whatever,

or somebody touches the water,

ice crystals will actually begin to form

around that nucleation site and

it'll proliferate outwards from that area.

- So, when Elsa puts her foot on the water

and then it turns to ice, you're saying that's real?

That could happen?

- It could happen, but under some crazy conditions!

- We're ready for the crazy conditions.

- Okay, she shoots magic out of her hand.

So let's just say, for example, in this universe,

her feet can get to the temperature of absolute zero.

- So her foot is a frozen piece of ice?

- So, kind...

- [Chrissy] She has a dead foot?

- [Selorm] Like freeze dried foot?

- She has a freeze dried foot?

- More like, her foot, by stepping onto the water

is actually sucking up the energy

and force freezing the water where her foot is,

thus creating the nucleation site.

Thus proliferating the ice.

It's possible. (laughs)

- Basically, to sum it up, she could probably do it.

- I mean yeah, basically, that's like...

Yeah, that's...

That's pretty much what it is, yeah.

- I'm a visual person and I need to like,

see some (bleep) evidence that what you're saying is real.

So... - Well, you're in luck.

Because we have an experiment

that actually shows instant ice.

- Whoa. - Ooh, I like experiments.

- And anybody can do this at home.

You get purified or distilled water.

Put it in your freezer for around

two hours and 30 minutes or so.

Strike it with your hand,

and then that creates the nucleation site

and proliferates the ice right through the bottle.

You can actually see the ice being formed instantly.

- Whoa.

- Oh! (screams)

Oh my god, look!

- Whoa! - What?

- [Selorm] You're Elsa!

- Right?

That's just exactly what it looks like.

- Try that one too before it goes.

(thud)

- [Chrissy] Ow.

- [Nick] There it goes! (Selorm screaming)

It's going all the way down!

You're magic! - I'm magic!

- I've eaten (bleep) so many times on ice.

Why is it so slippery?

- [Nick] Ice is liquid on the outisde.

- Mm-hmm. - So the coefficient friction

is less, so it's slippery on that surface.

It is exchanging back and forth

between the solid phase and liquid phase.

- Oh, the ice is confused.

- [Nick] It is!

- It can't decide what it is. - Yeah.

- Why there is a thin layer of water

on the outside of ice is still unknown.

- We don't know about water yet?

What year is this?

- You're made of it. - Ew.

So Elsa's a magic (bleep), okay?

We're just basic (bleep) people.

So if there is a solid sheet of ice,

how can you run on that ice without falling?

- To not ever run and then stop.

So if you are to continue to run and like, galavant.

- [Chrissy] You do a full running example for us please?

- Yes, this antelope thing.

- I would run something like this.

- Aaw! - Aaw!

That's sweet!

- [Selorm] That's adorable.

- [Chrissy] Do it again!

Look at that ice run!

- Look at that!

- That's so cute!

- What are some dangers that I should take into account?

- The most dangerous part will be

slipping and hitting your head.

Especially because, like,

when you do the whiplash thing back,

the speed and velocity that

your head actually hits the ground

is a lot faster than you even falling.

Don't want that, so I would wear a helmet.

You could sprain your wrist.

You could maybe take some skin off.

Like, you, yeah. - Oh!

- I like my skin. I'm scared.

Okay, here we are at the ice rink.

- Woo!

- It's cold.

There is a Zam-boo-ney.

- It's a Zamboni. (laughs) - Zamboni.

- Hah, Zam-boo-ney.

Yes!

Right now the ice is really cut up

as they say in the ice biz.

- When Elsa did this, she was walking on fresh ice

because she made it with her feet.

That's why we've got the Zamboni

making things really slippery and really dangerous.

- He's getting really close. (chuckles)

- I'm really nervous.

This is really dangerous.

Don't try this at home.

- Luckily, we have a ice skater somewhere around here.

Okay? Oh!

- Oh my goodness! - There she is!

- Hi! - Hey!

- So Selorm, if you can't run on ice,

we're gonna take it to the next (bleep) level

and have Amber try it.

- Toe pick on three!

- Toe pick? - Yeah.

- [All] One, two, three, toe pick!

- What's a toe pick?

(clicking)

- Oh my god, you look so beautiful.

Selorm, are you ready?

- I, yeah, I think I'm ready.

- I'm freezing so can you do this quickly?

- I'm in a dress so I'm definitely freezing.

(laughs)

- Three, two, one, sprint!

- Okay! (drowned out by music) - Sprint!

Run faster!

That is a slight jog! (Selorm screaming)

That is-- (laughing)

You didn't--

- Was that sprinting?

- No!

You can clearly speed walk on ice but Elsa (bleep) runs!

- Okay, run like I run from my problems.

- [Chrissy] You ready?

- I'm ready! - You can do this!

Three, two, one, run!

Run!

Get rid of those problems!

Run from your problems!

You're doing it! Yes!

(laughing)

- [Selorm] No...

- I'm so sorry I'm laughing.

Are you okay?

- I guess.

- [Chrissy] I'm so sorry!

This is gonna take so long for me to get there.

Great job! - Ow...

- Are you ready to do it in heels now?

- (bleep) no!

- Well you have to.

Three, two...

One, run baby run!

Yes, yes, you're doing it! (Selorm screaming)

You're doing... (laughing and cheering)

You can stop!

You can stop!

You did it! (Selorm whimpers)

- You're gonna pick me--

Okay...

- We have a little extra challenge for you,

since you killed it.

We're gonna have you race Amber in high heels!

- Okay... (laughing)

- Let's do it!

- [Selorm] She's a figure skater, this doesn't count!

- [Amber] I know, but this is new.

- [Chrissy] Three, two, one, run!

Go! Go, come on!

You can do this!

Oh my god, Selorm is winning!

What the--

Selorm won!

You did it!

- Yay!

- Yay.

- No one died!

Take it off man.

Yeah!

- That's way too small for me.

Well that was fun.

Elsa's a bad (bleep).

- Elsa is a bad (bleep). - Yay!

- You guys are bad (bleep). - Yay!

- Oh my god! - Yay!

- How does it feel to be a star?

- Uh, you know, it feels good.

- Sorry I ruined it! (laughs)

- The difference between me and Elsa,

is that Elsa looked so graceful when she was running.

I didn't look graceful.

I looked like a deer. - Yes you did.

You can run real fast, not fall, but like,

we're not gonna guarantee that you won't fall

at the end to try to stop yourself, which is like--

- [Selorm] What I did, I fell.

- [Chrissy] Yeah, she fell a little.

- I fell.

- And I laughed a little bit.

- Yeah, everybody laughed, I heard it.

- So it's basically, not bogus.

- Yeah, we did it.

Well, I did it. (both laugh)

- Meow meow meow, meow meow meow, (Chrissy mouthing along)

meow meow meow, meow meow meow meow.

(both laugh)

- [Woman] Alright, cool.

- I think that's fine, yeah.

(upbeat orchestral music)