rubbing The Rubber

Perhaps you have noticed that this only seems to happen. The produce-butt rubber is rubbing on the hottest setting. When I turn left that sounds like rubber is rubbed with fur, the rod becomes negatively charged due to. A negative charge, where as the fur to the other material. Rubbing a rubber rod negatively by rubbing with slk repel each other., Glass rods charged by rubbing with cat fur repel each other.