The History of Electricity Essay

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The History of Electricity

Luigi Galvani (1737-1798) was an Italian physician and physicist. He was one of the first to investigate the phenomenon of what came to be named as 'bioelectrogenesis'. Galvani reported a series of experiments he had been conducting since 1780 where fog's legs violently contracted if a metal scalpel accidentally touched a certain leg nerve during dissection. He showed that contractions occurred when the operator made contact with the nerve by means of an electric conductor connected to the ground, when the electrostatic machine was working or when there was a lighting strike in the vicinity. There were also produced if the frogs were placed on an iron plate while a
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He discovered the physiological action of electricity and demonstrated the existence of bioelectric forces in animal tissues. Galvani's experiments helped to establish the basis for biological study of neurophysiology and neurology.

1. 2.


1. Source: Corrosion Doctors. The prepared frog's leg hangs from the spinal stub by the nerves. When the electrostatic machine revolved, or Leyden jar discharged, Galvani observed that the legs jerked when a scalpel touched the nerve.

2. Source: Corrosion Doctors. To test the possible influence of lightning on frog's legs Galvani experimented outdoors. Found that legs moved under certain conditions even when the air was serene.

However another Italian physicist called Alessandro Volta (1745-1827) disagreed with Galvani's explanation of the phenomenon and began experiments that led him to theorise that animal tissue was not necessary for conduction of electricity.

Proof of this theory was the battery, which he invented in 1800. He built the first electrical pile (voltaic pile) or battery that produced chemical electricity. It consisted of a series of metal dishes of two kinds, separated by cardboard dishes soaked with acid or salt solution. This was the basis of all modern wet-cell batteries. This tremendously important scientific discovery was the first method found for the

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