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Energy Free Cooling through Physics

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