Charles Wheatstone

Charles WheatstoneIn existographies, Charles Wheatstone (1802-1879) (IQ:#|#) (Murray 4000:15|T) was an English scientist and inventor, a characterized “forgotten genius” (Gossick, 1968) (Ѻ), noted for []

Speed of electricity
In 1834, Wheatstone used a Leyden jar, a conducting wire with a gap cut in it, and a rotating mirror, to measure the speed of electricity. [1]

Charles Wheatstone, experiment

This revolving mirror design was later used by Leon Foucault and Hippolyte Fizeau to measure the velocity of light (or speed of light).

Telegraph
In 1836, Wheatstone and William Cooke (1806-1879), based on the Andre Ampere telegraph model (1820), built the first working telegraph system, and transmitted a message of one mile along a railway in London. [2]

References
1. Wheatstone, Charles. (1834). “An Account of some Experiments to Measure the Velocity of Electricity and the Duration of Electric Light” (pdf), Philosophical Transactions of the Royal Society of London, 124:583-91, Jun 19.
2. Kirby, Richard. (1956). Engineering in History (co-authors: Sidney Withington, Arthur Darling, Frederick Kilgour) (pg. 338). Courier, 1990.

External links
Charles Wheatstone – Wikipedia.

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