If YETI can make a cup that keeps water cold or hot for hours and a cooler that holds ice for hours, then why aren’t we building houses with that same material?

Question

If YETI can make a cup that keeps water cold or hot for hours and a cooler that holds ice for hours, then why aren’t we building houses with that same material?

In: 824

Answer 1

Heat can transfer in three ways: radiation, convection, and conduction. You can’t really stop radiation, although you can slow it down. You also can’t really stop convection, but that isn’t relevant to keeping heat inside a thermos.