Translations:Adventist Youth Honors Answer Book/Health and Science/Physics/34/en
From Pathfinder Wiki
The energy that we lose to friction is turned into heat. Rub the palms of your hands back and forth across each other. Your hands will start to get warm, in fact this is a good way to warm your hands when it is chilly. This heat can cause problems in the fan of your computer, or the cylinders of a car, so bearings, oil and grease are used to help reduce the heat and damage that can be caused by friction.
