#didyouknow One of the first civilizations to use central heating was the Roman civilization. Some buildings in the Roman Empire used the “hypocaust” system, where furnace-heated air traveled through empty spaces under floors and out of pipes in the walls.
#funfact Heat is a form of energy that’s created by the movement of molecules. When an object is heated, the molecules move faster. When cooled, the molecules move slower. That’s why two cold objects can create heat when rubbed together.