Post #3811993

That's why Radiative Sky Cooling is so interesting: you're actually sending the energy (as infrared) back out into space. There's a narrow "window" in the spectrum where the atmosphere is especially transparent so if you radiate in that band, as some materials do, then you can literally cool off by shedding heat into space, wow. 😀👍 https://www.youtube.com/playlist?list=PL1a2HkcVbmAWExiWT__qQypLEwkvijnIM #DIY #SolarPunk