Making SOLID Nitrogen!

What happens when you decrease the pressure around a liquid? It boils. Water boils at room temperature once the pressure is low enough. What is interesting is that this decreases the temperature of the liquid. The fastest molecules escape, leaving the slower ones behind.
Using this trick with liquid nitrogen, it is possible to create solid nitrogen at a temperature of -210C. We then poured the solid and liquid nitrogen mixture onto a tray of water. The surface of the water became so cold that CO2 solidified out of the atmosphere on its surface. Then, since CO2 does not pass through the liquid phase at atmospheric pressure, it was propelled on the water surface by jets of gas as it sublimed.
Huge thanks to the Palais de la Decouverte.

[thebonesaw..]

The things I love the most about this video are the childlike wonder on the face of the scientist performing the nitrogen experiment and the excitement of his voice. There's a man who genuinely loves his job.

[sadik.oagile]

This French man's happiness is contagious! I was just dying with laughter when he was like "Regardes! Regardes!"

[JohnDoe_]

That French man is SO into science that I'm happy for him.

I speak french and it's just so cool to hear how the professor is amazed and enthusiastic about all that :D

[veritasium]

I think this might be saying the same thing in a different way. The fastest molecules carry away the energy with them.

[EnigmaGameMaster]

It's so nice to understand both English and French! :D And the French guy really loves his job, it's awesome! :DDD

[hologrampizza]

Fun fact! Nitrogen ice is found on the surface of Pluto!

[leonardokim]

Really love the genuine excitement of that french scientist (doctor/professor?)

[SotiCoto]

Oh man... that French guy is so classy! He totally makes this video.

[bigdaveoncampus]

A true scientist there, getting excited over something he's probably done before and knew was going to happen!

[JessieTrinket]

This may be the coolest video on youtube. No pun intended.

[UrAwsome]

I guess that you could say solid nitrogen is N-ice (nice)

[alemutasa]

Triple point experiments are my favourite lab experience ever. Reading temperatures and constructing the graphs was one of the coolest things I did

[cuteCathy]

I'm so happy for that adorable french scientist :)

[robertmegee]

Since I've retired I've been trying to learn French. Reading is going quite well, but this it the actual first time that I have understood spoken French outside of the lessons on Duolingo. Just another reason to enjoy this episode. C'est magnifique !

[TheCalvinCheung]

I just found this youtuber, but he makes science much more interesting !

[andrejsasd]

Sometimes people say, that "If you're in to science, you know so much, that it takes wonder out of everything. When you understand things, they're not so magical anymore." These guys show, that when you understand a lot of things, you can do SO MUCH MORE and the magic is not lost.

[zinzolin]

Teehee, that French guy was so excited it's adorable

[KushPatel]

Loved the French Professor! He's just as amazed as I was!

[fredtaylor]

This is one of the coolest science demonstrations i've ever seen. Thank you!