• nul9o9@lemmy.dbzer0.com
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    8 months ago

    You need a radiator, otherwise the glass of water will eventually be the same temp as the phone.

    • Swedneck@discuss.tchncs.de
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      8 months ago

      not quite, the glass of water itself acts as a radiator since it has a significantly larger surface area than the phone, and water evaporation cools it down ever so slightly

      even at equilibrium it’ll probably keep the phone a degree or two colder, i’d wager.

      • nul9o9@lemmy.dbzer0.com
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        8 months ago

        Evaporation will help radiate heat away, but the surface area to volume ratio is much lower than the phone by itself.

    • yetAnotherUser@discuss.tchncs.de
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      8 months ago

      Not for a phone though.

      Water can store a shitton of heat. Phones produce comparatively very little heat.

      After an hour or two, just replace the now warm water with cold water.