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Thomas Edison, Nikola Tesla, and the Other Brilliant But Eccentric Characters That Electrified Our World

History Unplugged Podcast

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The Vacuum Pump

A German politician paved the way for the electric light bulb. He knew about a barometer that measured pressure and he knew it had a vacuum on the top. That device was taken by Sir Isaac Newton's assistant, Francis Hoxby. It looks like if you squint your eyes, not too different from the Charles Babbage mainframe computer in the 19th century.

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