This should be easy to test. Two identical pieces of metal, one painted white and one painted black heated to the same temperature. The black one should cool 4 times faster than the white one.
This should be easy to test. Two identical pieces of metal, one painted white and one painted black heated to the same temperature. The black one should cool 4 times faster than the white one.
I'd guess that if it wasn't hot enough to burn the paint off, the cooling would mainly be by convection and conduction.
I'd guess that if it wasn't hot enough to burn the paint off, the cooling would mainly be by convection and conduction.
I mean in a vacuum. The vacuum part is the difficult part at home.
I mean in a vacuum. The vacuum part is the difficult part at home.
They sell gadgets at auto parts stores to evacuate AC systems with a water hose, or you could make one yourself, but then the hard part would be to heat them up as the vacuum gadget takes awhile.
They sell gadgets at auto parts stores to evacuate AC systems with a water hose, or you could make one yourself, but then the hard part would be to heat them up as the vacuum gadget takes awhile.
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