Above is a cross section diagram of the Leyden Jar. Pieter van Masschenbroek invented the Leyden Jar in 1975. The Leyden Jar would be used to store electric charge. The original jar was made out of a glass bottle, and it contained water to conduct electricity. A metal wire was passed through the cork which was used to close the jar. There was a conducting metal foil wrapped around the outside of the jar and also covering some of the inside surface. The inner and outer surfaces of the jar store opposite charges that are of equal amounts.
Franklin’s bells were used as an original form of detecting when an electrical storm was going to occur. This was because when the bells were connected to a lightning rod, they would ring when an electrical storm was close by. This idea was started when Franklin, during one of his experiments, realized that when 2 differently charged objects made contact with each other then they both would become the same charge. He also found that some things were attracted to charged objects. Using this idea he used a bell in place of one of the objects.
Franklin’s bells were used as an original form of detecting when an electrical storm was going to occur. This was because when the bells were connected to a lightning rod, they would ring when an electrical storm was close by. This idea was started when Franklin, during one of his experiments, realized that when 2 differently charged objects made contact with each other then they both would become the same charge. He also found that some things were attracted to charged objects. Using this idea he used a bell in place of one of the objects.
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Invented in 1975? Not quite. Benjamin Franklin makes reference to "M. Muschenborek's wonderful bottle" in a letter to Mr. Peter Collinson dated July 28, 1747.
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