That's a trick answer right? I didn't get the bus with the option for the altered set of universal laws of thermodynamics. How much did that cost?
![Roll Eyes (Sarcastic)](images/smilies/rolleyes.png)
It's all about the photons.
![Big Grin](images/smilies/biggrin.png)
Even your radiant heat is photons in the non visible Infra red range.
Painting it white is a bad term. Painting it reflective is a better color for reducing thermal load. You can actiaully paint things black and have them more reflective (cooler) than white. It is a function of what's in the paint and usually what's important is what you can't see. Most of the heat action is in the invisible ranges.