• ATS1312@lemmy.dbzer0.com
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    2 个月前

    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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      2 个月前

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