Liquid nitrogen is incredibly cheap if you buy it in bulk. It's a byproduct of welding/industrial gas production. The gas suppliers use cryogenic coolers to chill the air we breathe to concentrate O2, argon, CO2, N2. Nitrogen is literally the byproduct.
Reposted from Andrew Couts
NEW: "Workers say FDA labs now have to go through a lengthy process to order liquid nitrogen, which ... preserve samples of cells and other biological material that reflect years sometimes decades of research." @emilymullin.bsky.social & @zoeschiffer.bsky.social report: www.wired.com/story/doge-e...

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