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BY 1769 James watt had improved the steam train by using a seperate condensing chamber which allowed the the machine to keep working all the time
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Alessandro invented a wet battery called a Voltaic Pile. The Voltaic Pile consisted of discs of copper and zinc separated by discs of paper or cardboard (soaked in salt water).
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Ampere had a big impact when he had discovered electromagnetism, he had also helped measure the flow of electricity
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Georg researched the relationship between voltage, current and resistance. I he proved that the amount of electrical current that can flow through a substance depends on its starsincee
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