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Old 09-21-2022, 12:06 PM   #18 (permalink)
freebeard
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Quote:
How does one generate that signal and then radiate it efficiently?
It's not a signal, it's heat. Sort of the opposite.

https://www.skycoolsystems.com/technology/
Quote:
Dual-Mode Film serves numerous applications
  • Applied to outdoor batteries or electronic boxes
  • Applied to outdoor shaded structures
  • Applied on metal roofs
  • Applied to refrigerated trucks or other vehicles
It's a foil with alternating layers of two materials. Something like a vinyl wrap that works better than Ultrawhite paint.
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