Hans Christian Oersted was the first to proclaim, in 1820, that a magnetic field is created around a wire that has a current running through it. In 1830, English physicist Michael Faraday ...
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On this date: aluminum becomes cheapA Danish physicist and chemist, Hans Christian Ørsted, finally produced an impure sample in 1825 by heating aluminum chloride with potassium, and German chemist Friedrich Wöhler obtained pure ...
Its simplicity masks its true importance as the first surviving electric motor. In 1820 Hans Christian Ørsted announced his discovery that the flow of an electric current through a wire produced a ...
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