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weinzierl
on June 4, 2015
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Why do airplane windows have tiny holes?
I didn't know that there are indeed double-paned windows that have most of the air removed from the space between the panes. That was interesting news to me.
cactusface
on June 5, 2015
[–]
Apparently sometimes Argon gas instead of a (partial) vacuum, but I didn't read up on why...
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