2 ms·
Isn't that like, the default? I would find it more impressive if it didn't.
by codr7 2y ago
Isn't that like, the default?
I would find it more impressive if it didn't.
- SapporoChris 2y agoYes, I am confident that all materials get warmer when exposed to sunlight. Evaporative cooling might be argued as an exception, however I do not consider it so. There might be some materials that do not absorb solar radiation, I'm not aware of them. https://en.wikipedia.org/wiki/Evaporative_cooler https://en.wikipedia.org/wiki/Evaporative_cooler
- xhkkffbf 2y agoWhat about a mirror?
- viraptor 2y agoMirrors are nowhere near perfect with their reflections. You'll get some of the light/heat absorbed.
- MadnessASAP 2y agoI'm pretty sure the cheapest mirrors still manage 80% with good quality ones in the 95-99% and 99.999% achievable if you're prepared to get fancy. So I'd say they're pretty dang close to perfect. Definitely well down the asymptote.
- viraptor 2y agoI don't get what point you're trying to make... They reflect some radiation depending on quality. Regardless how close to perfect they get, the answer to the original question is - no, they don't break the "everything heats up" rule.
- wongarsu 2y agoThere is radiative cooling paint that in addition to reflecting most light radiates heat in wavelengths that don't get absorbed by the atmosphere. That makes them cooler than ambient temperature when they are under the open sky. They still get heated by the sun, just less so than everything else. But very similar sounding sentences about them would be true (because on a sunny day, in the shadow, they would be cooler than indoors at the same ambient temperature)
- stevage 2y agoIt does it better than the default. HTH.
- slipperybeluga 2y ago[dead]