Prototype electric clock

Prototype electric clock

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Credit: SHEILA TERRY/SCIENCE PHOTO LIBRARY

Caption: Prototype electric clock, 19th century artwork. The cogs and gears of this clock (down centre) are driven by the four electromagnetic induction coils (cylinders, one at upper left). This mechanism was first invented in 1840, but practical problems led to a lack of success. The first practical electric clock was patented in 1906, using self-contained batteries. Artwork from The Circle of Sciences, London, 1862-67.

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Keywords: 1862, 1862-67, 19, 19th century, artwork, black-and-white, clock, clockwork, coils, diagram, electric, electrical, electricity, electromagnetic, historical, history of science, horology, illustration, induction coil, j., london, machine, mechanical, monochrome, nineteenth, physics, pioneer, pioneering, prototyp, sepia, technological, technology, the circle of sciences, time, timimg, victorian, wylde

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