alt Hacker NewsSomething like a vacuum flask, I imagine. Vacuum is a very good insulator already and you minimise radiative heat transfer (infrared glow) by making a surface shiny and metallic usually (low emissivity)
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jstanley • last Saturday at 11:00 AM
If you have to bring your own vacuum flask, don't you lose half the benefit of doing it in space?
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Good electrical conductors are also good thermal conductors. It's a fun system challenge to minimize what needs to be hot, but some things will have to get hot. It could be reduced to a photodiode, transistor, and a relay.
But how do you get the power to the heater in a compact way?