dmention7, 1 year ago On the chance you’re not just making a funny - The walls of your house keep inside stuff inside and outside stuff outside. A thermos is just a wall for heat, whether that heat is trying to get in or out.
On the chance you’re not just making a funny - The walls of your house keep inside stuff inside and outside stuff outside. A thermos is just a wall for heat, whether that heat is trying to get in or out.