>> In tests, it cooled surfaces by 4.5C below the ambient temperature, even in strong sunlight. I am not in phisics but AFAIU in order to "cool" one have to remove energy from the object being cooled. So the paint would have to actively emitt energy and well the best emitters are not while, are they? Perfect black body comes to mind but this probably would not work well in direct sunlight?
So can you explain the process by which the white paint is able to cool below ambient? Is this Maxwell's demon th
it..cools? (Score:3)
>> In tests, it cooled surfaces by 4.5C below the ambient temperature, even in strong sunlight.
I am not in phisics but AFAIU in order to "cool" one have to remove energy from the object being cooled. So the paint would have to actively emitt energy and well the best emitters are not while, are they? Perfect black body comes to mind but this probably would not work well in direct sunlight?
So can you explain the process by which the white paint is able to cool below ambient? Is this Maxwell's demon th
Re: it..cools? (Score:2)
Convective heat loss exceeds heat gained from direct illumination? Literally not rocket science.