Question

Often times we think about insulation, we think about keeping cold items cold, such as drinks in an ice chest or the cool temperature in your home. But insulation also keeps things high! The same thermos that keeps your water cold keep your hot chocolate worm. How was that possible?

Answer 1

Answer:

So, insulation essentially works by creating a sort of barrier between the hot and the cold object. This barrier helps to reduce heat transfer by either reflecting the thermal radiation or by decreasing thermal conduction and convection from one object to the other.