Mike Beversluis

Friday, February 13, 2009

World's Largest...

That's pretty cool. Space is a good vacuum, so I wonder how low they have to go - I imagine not very low. Things get very hard when you get to very low pressures, because the residual outgassing of all the wall materials will exceed even the best pump's abilities to remove them. And since they only need a vacuum to accurately simulate heating and cooling cycles without conduction, it shouldn't have to be too perfect. Hence nature is only dislikes it, and hasn't gone in for the usual abhorring.

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