Did you know there's a whole branch of material sciences taking advantage of certain quirks of physics to create passive cooling devices? Because I didn't. But hopefully you'll find the science behind it as exciting as I did!

Big Thanks to Arny Leroy for taking the time to discuss and answer some questions.

Sources/Extra Reading:

Quantum Aspects of Light and Matter - https://www.bu.edu/quantum/notes/Gene...

High-performance subambient radiative cooling
enabled by optically selective and thermally insulating
polyethylene aerogel - https://doi.org/10.1126/sciadv.aat9480

Hierarchical-morphology metafabric for scalable passive daytime radiative cooling - https://doi.org/10.1126/science.abi5484

Subambient daytime radiative cooling textile based on nanoprocessed silk - https://doi.org/10.1038/s41565-021-00...

Circle larger than the wavelength - http://www.met.reading.ac.uk/clouds/m...

FTIR Spectra of Polymers - http://www.ftir-polymers.com/soon.htm