English: Charles Wheatstone's 1843 Rheostat with a moving whisker
Date
Source
Wheatstone, Charles: "An Account of several new Instruments and Processes for determining the Constants of a Voltaic Circuit", Philosophical Transactions of the Royal Society of London, Volume 133, 1843, pp. 308-309.
Author
Wheatstone, Charles
Licensing
Public domainPublic domainfalsefalse
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applies to jurisdiction: United States
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1843
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