You know that frustration after you gear up for a snowy day, only to have to take it all off in a heated office? Well, penguins don't. Come sweltering heat or frigid cold, they just chill. Inspired by these clumsy masters of thermal management, scientists have created a material that can passively switch between heating and cooling modes.Continue ReadingCategory: Materials, EngineeringTags: Biomimicry, Harbin Institute of Technology, Heating, Co…