subambient   1

A radiative cooling structural material | Science
using boiling hydrogen peroxide, these researchers reduced/compressed wood by removing the lignin, making an engineered wood with interesting properties, such as high strength. The kicker is that the white material is also a narrowband IR emitter tuned to dump heat to space through the atmospheric windows, so it can cool you in broad daylight.
engineered  wood  lignin  removal  narrowband  IR  emitter  atmospheric  window  insulation  cooling  subambient 
may 2019 by asteroza

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atmospheric  cooling  emitter  engineered  insulation  ir  lignin  narrowband  removal  window  wood 

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