Making liquid nitrogen from scratch (an absurd amount)

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For as long as I can remember, I've always been fascinated by liquid nitrogen and I've always wanted to be able to make it myself, but I never did because it just seemed too difficult. Recently though, for some unknown reason, I felt that I was ready to try doing it, despite having basically no experience with stuff like this, and I decided to just go for it.

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Nile talks about lab safety: https://youtu.be/ftACSEJ6DZA

Chapters:
0:00 - Liquid air & my LN2 mission
02:25 - Researching & my plan
04:33 - Getting all of the pieces
14:23 - Attaching the cryocooler
20:06 - Does the cryocooler work?
28:30 - Testing the Dewar
29:49 - Putting everything together
35:51 - The moment of truth
41:37 - Extracting the LN2
46:47 - My LN2 dream is now real!

Music in credits (Walker by SORRYSINES): https://soundcloud.com/sorrysines/walker