Quote:
Originally Posted by MrB
Did I miss something?
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It relies on re-radiating thermal energy at the very specific colour (in the infrared) where the atmosphere is transparent. The mirror thus has a very low temperature to radiate to (the cosmic background). Thusly treated, an esky (outdoors) could dump it's heat into space, a fridge indoors would collect heat radiating from your ceiling.
It's the greenhouse effect in reverse.
very clever.