If walking out side in the cold temps how would a thermos keep a drink hot compared to an open a new closed system?

3 Answers

  • 1 month ago

    There's a vacuum between the inner and outer walls of the thermos that acts as insulaion preventing the transfer of heat.

  • CB
    Lv 7
    1 month ago

    Step away from the bong dude and try again. 

    THERMOS - a container that keeps a drink or other fluid hot or cold by means of a double wall enclosing a vacuum.

  • kswck2
    Lv 7
    1 month ago

    Try that one again. Say What? 

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