If exciting molecules generates heat, would it not be possible to create cooling by somehow resonating those molecules, perhaps through the use of sound waves? If you could get air molecules lined up, for instance, using acoustical harmonics, would they not immediately drop in temperature as a result of their lessened interactions with each other? Even if only some molecules are harmonizing?
Its my understanding microwave ovens work similarly, only they add heat by exciting molecules. If a microwave was tuned to instead resonate those molecules, I would think it could be made to actually cool things, rather than heat them.
Ah, the things I don’t know and wish I did.
I get chills when I listen to some music 🙂