Nitrogen is everywhere. It’s a fundamental building block of life. It makes up 78% of the atmosphere,
AND it’s in these tiny micro bubbles, in my Starbucks ‘Nitro-Cold Brew.’ And yes, this episode is sponsored
by Starbucks. They challenged me to liquify
nitrogen out of the air, and that’s what I’m gonna be doing in this video. But first I’m gonna try Nitro Cold Brew
for the first time… [Drinking the nitro cold brew] Mmmm It’s subtly sweet without having to add sugar, and obviously it’s cold and frothy, and I’m gonna explain why nitrogen
makes this possible. But first I’m gonna try to liquify some nitrogen for myself out of this atmosphere. Come on, let’s go. Okay, in order to make liquid nitrogen, we need a way to make the air really cold. And to do that, I’m going to use this cryo-cooler. So essentially what’s inside here is a
cylinder of helium and a couple pistons. There’s a piston that compresses
the helium down into this section, and when it does that, it makes that gas really hot. And so, that heat gets ejected to
the surroundings through this heat sink. Then the helium is expanded down in here,
and as that happens, it gets really cold. So it absorbs the heat from the surroundings. So this is the part of the cryo-cooler
that is going to get down to less than -200°C. So cryogenic temperatures. This is the place where we can really
liquify some gas. So, I want to put this to the test and first do a sort of simple proof-of-concept and make sure that this is working and just try to liquify air, liquify the air in this room. This is Allen Pan. Allen is handier with tools than I am, so uuh, I brought him here to help me make
this happen. How should people know you, Allen? Like what do you get into, what’s your thing? Allen: I’m a failed Mythbuster, and also I have a YouTube channel called
“Sufficiently Advanced”. Derek VO: You may know Allen from
his creations and, relevant to this project, shooting
liquid nitrogen from his hands. [Allen laughs] Allen: I’m definitely breaking your drill by the way>D: I see that 🙂 I see that.Allen: It’s like a whole-I hear something!