• Phoonzang@lemmy.world
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      9 months ago

      That’s not how thermodynamics work. It’s either transferring heat more efficiently, or not. But always the same, in both directions.

        • Pulptastic@midwest.social
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          9 months ago

          Insulation and conduction are opposites. Vacuum (empty space) and stagnant air are great insulators, that’s how double walled bottles insulate.

          Aluminum conducts heat quickly for the same reason it conducts electricity well. It has a relatively low heat capacity too so it doesn’t take much energy to heat or cool it so it will more quickly heat or cool its contents.

          Toss that alu can in the freezer to cool it quickly, then put it in an insulated colster to keep it cold.

    • Spzi@lemm.ee
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      8 months ago

      I like that it comes in a can, not a plastic bottle simply because it gets colder faster and stays colder longer.

      If it feels colder in your hand, it means the opposite of what you assume: It absorbs heat from your hand faster, so the stays colder shorter.

      Imagine instead you hold a perfectly insulated container. You could not feel wether the inside is hot or cold, or else the insulation would be faulty.

      So if you really want to have a drink that stays colder longer, grab something which does not give away how cold it is, quite literally.