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Passive refrigerator--in Nature and in MIT News  RSS feed

 
pollinator
Posts: 1124
Location: Massachusetts, 6b, urban, nearish coast, 39'x60' minus the house, mostly shady north side, + lead.
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kids trees urban
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Mind blown.  Cooling by as much as 40C below ambient temperature in dry climates.  Allows emission in infrared rays.

Thoughts?
IMG_20190305_225233839.jpg
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pollinator
Posts: 519
Location: Michigan
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A heat transducer....?  I have no idea what to call it, but its cool that it can exploit lowering resistance to heat loss by selective radiation. A reverse selective absorber like solar thermal absorbers.

Always cool when a materials arrangement can do work without moving parts. High technology if it is practical and works.
 
Can't .... do .... plaid .... So I did this tiny ad instead:
It's like binging on 7 seasons of your favorite netflix permaculture show
http://permaculture-design-course.com/
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