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When electronics was young - part 6a

When electronics was young - part 6a
In 1837, the first electric motor was developed (and patented) in the USA by Thomas Davenport. A few years later, in 1839, the magnetohydrodynamic battery was proposed by Michael Faraday in the UK; the photovoltaic effect was described in France by Alexandre Edmond Becquerel (1820–91), and the fuel cell was invented by Sir William Robert Grove (1811–96) in the UK.
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