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  • (clicking)

  • - 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?