• ATS1312@lemmy.dbzer0.com
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    2 hours ago

    Heat is energy as “vibration of molecules”. It spreads to adjacent molecules by conduction, unless we have other interesting things going on. Easy stuff.

    Vacuum is the absence of molecules to conduct heat to.

    Wait…

    • cammoblammo@lemmy.world
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      8 minutes ago

      Well, it can also radiate away in the form of EM radiation, typically infrared. That takes time though.