Nah
liquid helium's superfluid, I don't recall nitrogen being so as well.
The temp difference would probably shatter it going in, and the increased pressure as it evaporated would definitely
(
Lethe is carrying a spade. SPANG.,
Mon 24 Nov 2003, 19:30,
archived)
That's the one
I was thinking of. Nitrogen, Helium, pah. It's all Chemistry that. Not my department :-)
(
jacko_here just here has some ducks,
Mon 24 Nov 2003, 19:32,
archived)