• LemmyKnowsBest@lemmy.world
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    5 days ago

    The weird thing about foil blankets and foil in general is that it’s cold & uncomfortable to the touch. Always seems counterintuitive to me that it would provide warmth, but who am I to not trust science.

    • Swedneck@discuss.tchncs.de
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      2 days ago

      it’s like how you can feel the heat of the sun despite the air being cold.
      heat radiating from your body reflects against the foil and hits you again, whereas if you touch the foil the heat in your fingers goes into the material directly.