Quote:
Originally Posted by ah-kay
It ain't going to work and is expensive. The temperature delta is small to make the coefficients of expansion, in this case, contraction, to work in your favor. I can heat any part to 1000C easily and very localized. Try it with liquid nitrogen, very expensive, and you only get to -273C.
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Um... liquid nitrogen is nowhere close to -273C... that would be absolute zero... maybe .273F is what you meant?
Your point is still valid though... heat is much larger differential possible.