Electric circuit research. 19th-century diagrams showing the instruments used to determine constants in a voltaic circuit. Diagram from 'The scientifi

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Electric circuit research. 19th-century diagrams showing the instruments used to determine constants in a voltaic circuit. Diagram from 'The scientific papers of Sir Charles Wheatstone' (1879) by British physicist Charles Wheatstone (1802-1875).

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Photo credit: © KING'S COLLEGE LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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