H and N friction can produce "heat".
Friction is the resistance from movement of one object moving in respect to another. It's anything but a basic power, similar to gravity or electromagnetism. Rather, researchers trust it is the aftereffect of the electromagnetic attraction between charged particles in two contacting surfaces.When surfaces in contact move in respect to each other, the rubbing between the two surfaces changes over dynamic vitality into warm vitality (that is, it changes over work to heat).