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Stephen Gray (England) distinguished between conductors and nonconductors of electrical charges.
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Georg Von Kleist (Germany) developed the first electric capacitator, a device for storing electricity.
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Franklin tied a key to a kite string during a thunderstorm, and proved that static electricity and lightning were the same thing.
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Ohm defined the relationship between power, voltage, current and resistance in Ohms Law.
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Faraday proved that electricity can be induced (made) by changes in an electromagnetic field. Faraday's experiments about how electric current works led to the understanding of electrical transformers and motors.
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Henry nvented the electrical relay, which could send electrical currents long distances.
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Grove developed the first fuel cell, a device that produces electrical energy by combining hydrogen and oxygen.
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Joule showed that energy is conserved in electrical circuits involving current flow, thermal heating, and chemical transformations.
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Bush invented the open coil dynamo (or generator) that could produce a steady current of electricity.
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Thomas Edison invents the first commercially practical incandescent light.
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A 22-mile AC powerline was opened, sending electricity from Folsom Powerhouse in California to Sacramento.
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Mercury Vapour Lamp1 Mar 1901Peter Cooper Hewitt of United States of America patented the mercury vapour lamp.
