Is Absolute Zero Possible?

Is achieving absolute zero possible? What's the closest humans have come to achieving it, and what do Bose-Einstein condensates have to do with it? Come on in!

0:00 Spoiler - absolute zero isn't possible
0:39 Temperature scales
2:46 Really cold temperatures
3:45 Adventures with helium
6:20 The coldest recorded temperature
7:04 How to get the coldest recorded temperature

Various Sources of Info:

#PhDatLiving #chemistry #absolutezero

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[hawkeye]

I absolutely love your channel. Great video.

[rubenkerobyan]

Yess finally a great video after an unbearably long hiatus.

[oest_]

Wow, quite a pleasant surprise to see you upload a new video!

[KaushikAdhikari]

Easier explanation: at absolute zero the momentum and position of a particle if fixed and hence it violates Heisenberg's uncertainty principle (change in position × change in momentum is greater than or equal to (reduced Planck constant/2))

[yclept]

There are negative absolute temperatures, so it's not really a kinetic energy thing. See population inversions.

[ernie]

Topic - cool. Presentation - cool. Math/chemistry - cool. Lack of demonstrations or even animations - not cool. Spending 15 seconds of a 10 minute video on why you can't get to absolute zero on talking about why you can't get to absolute zero - uncool.