![]() He didn't understand why this jar stored so efficiently, but he send a scrambled description to some associates in Berlin, and one copy was sent on to von Klein's old university associate Andreas Cunaeus where it ended up in the hands of Pieter van Musschenbroek, who was the University of Leyden's main physics professor. He had made a connection between the inside charge and the accumulated outside charge, and since these were opposite signs (one positive and the other negative) all the accumulated charge flowed through his body. ![]() When he accidentally touched the nail, he received such a shock that it threw him across the room. In von Kleist's case, this electrically conductive surface was just his hand, but it was enough to allow a very substantial charge to enter and remain in the jar through a nail he had driven through the cork. This neutralises the pressure from the charge trying to flow back out. A peculiarity of electricity allows it to continue flowing into the bottle provided the outside of the bottle has an electrically conductive surface connected to the earth. He underestimated how much electricity a small medicine bottle could hold by thousands of times. He only had a small experimental friction generator. He thought he might be able to capture and hold a small amount. He was interested to find whether static electricity could be stored in a bottle, because he knew that electricity could not pass through glass. He was the dean of the cathedral of Cammin in Pomerania, on the north coast of Germany (at that time a separate country). The first electrical storage jar was created by Ewald Georg von Kleist on 11 October 1745. These methods are known today as ' condensers' or ' capacitors'. ![]() They are the first form of electrical storage. They allow the experimenter to collect a large amount of charge. It is large glass bottle, usually lined on both the inside and the outside with some type of metal foil. The Leyden jar (or Leiden jar) is a device for storing static electricity. Later more common type using metal foil, 1919 ![]()
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