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nitrogen
on April 16, 2021
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'Whitest ever' paint reflects 98% of sunlight
Just need to make sure that the white coating doesn't block radiation of heat to the building underneath when black is facing the sun.
godelski
on April 17, 2021
[–]
I'm assuming you would have put this on some conductive surface. Otherwise the black side wouldn't be super useful (you'd re-radiate heat back but conduction is better).
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