Replying to Avatar Truthy Harkonnen

nostr:npub1ypfcrd4k5ryzlcg8jmdvgrlk29ladfe27z7c2aaq8lvmks6drwqqautsp5 both reflect and absorb based on their color and makeup. This is literally 7th grade science. You can rotate a fan by simply coloring it black/white on different parts of the blades.

Avatar
π˜π˜°π˜³π˜΅π˜Ίπ˜›π˜Έπ˜°β„’ 2y ago

nostr:npub182f2nv0ckh6cst58s7gu6h4ys55f3yusgenttw9v55xchelyy04sq55z5g nostr:npub1ypfcrd4k5ryzlcg8jmdvgrlk29ladfe27z7c2aaq8lvmks6drwqqautsp5 I mean, black absorbs nearly all energy in the visible spectrum, the energy is converted to heat (which does radiate), but its not reflecting light (not much, anyway).

I think that's the point nostr:npub1gxv4vcqfp2ug07fd34t0swq4w2t9gsynu0cmelr6ktcna8xnv38qythh99 was making.

I can't think of a single substance which reflects 100% energy and absorbs 100% energy in the same wavelengths.

There's tradeoffs.

Reply to this note

Please Login to reply.

Discussion

41
41ed3822... 2y ago

nostr:npub1w5p2xgn2hkddv5ced2527rrclk7gkjup7qntgqxcdcu40jvnwsssrz7gzp

nostr:npub182f2nv0ckh6cst58s7gu6h4ys55f3yusgenttw9v55xchelyy04sq55z5g nostr:npub1ypfcrd4k5ryzlcg8jmdvgrlk29ladfe27z7c2aaq8lvmks6drwqqautsp5 nostr:npub1gxv4vcqfp2ug07fd34t0swq4w2t9gsynu0cmelr6ktcna8xnv38qythh99

Radiation is not reflection. It radiates the energy that was previously absorbed.

Every substance has some kind of absorption coefficient, which is the percentage of energy that is absorbed. The rest is reflected. But this reflected energy doesn't raise local temperature the way that radiated energy does.