Charles Wheatstone
Sir Charles Wheatstone FRS (6 February 1802 – 19 October 1875), was an English scientist and inventor of many scientific breakthroughs of the Victorian era, including the English concertina, the stereoscope (a device for displaying three-dimensional images), and the Playfair cipher (an encryption technique). However, Wheatstone is best known for his contributions in the development of the Wheatstone bridge, originally invented by Samuel Hunter Christie, which is used to measure an unknown electrical resistance, and as a major figure in the development of telegraphy.
Read more about Charles Wheatstone: Life, Music Instruments and Acoustics, Velocity of Electricity, Spectroscopy, Telegraph, Optics, Measuring Time, Wheatstone Bridge, Cryptography, Electrical Generators
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“But if that Golden Age would come again,
And Charles here rule as he before did reign;”
—Robert Herrick (1591–1674)