Answer to Question #184336 in Physics for lie

Question

say something about the Van de Graaff generator; why do hair fly up when you touch the device?

Answer 1

 This is all down to static electricity. Inside the Van de Graaff generator, there is a rubber band and rollers. As they are electrically insulated, when the motor turns they rub together and electrons are 'knocked' off causing a positive charge.