Pith balls. Two pith balls are suspended by threads from a non-conductive rod. When both pith balls are charged by touching a charged object, they acquire charge of the same polarity and start to repel each other. The distance between the balls is determined by the amount of the charge. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turtle Rock Scientific |
Taille de l’image : | 3387 px × 5160 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |