Invisible <voi### [at] devnull> wrote:
> http://www.wiley.com/college/phy/halliday320005/pdf/leidenfrost_essay.pdf

In grad school, I bought a soda from a machine: it was warm. So I drank about a
fifth of it and then filled it back up with liquid nitrogen.  It got a bit
colder.  After I'd drank half of it, I had a big burp: it was a big cloud of the
"LN2 smoke".

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