For example, in the same area, is a black ball similar in temperature w/ a white ball? Can we use this idea to make things we want to be colder colder, and hotter, hotter by recoloring it?
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If it’s being illuminated by sunlight, color does have to do with its temperature. The reason an object is black is because it’s absorbing most of the visible and infrared light wavelengths. A white surface is reflecting almost all of the visible light and infrared wavelengths.
As far as making things cooler, it does matter. If everyone painted their roof white, their building wouldn’t be as hot.
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