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The electric field was formally defined as the force exerted per unit charge, but the concept of potential allows for a more useful and equivalent definition: the electric field is the local gradient of the electric potential. Usually expressed in volts per metre, the vector direction of the field is the line of greatest slope of potential, and ...
He invented the voltaic pile in 1799, and reported the results of his experiments in a two-part letter to the president of the Royal Society, [4] [5] which was published in 1800. [6] With this invention, Volta proved that electricity could be generated chemically and debunked the prevalent theory that electricity was generated solely by living ...
Michael Faraday was born on 22 September 1791 in Newington Butts, [7] Surrey, which is now part of the London Borough of Southwark. [8] His family was not well off. His father, James, was a member of the Glasite sect of Christianity.
Russian engineer Pavel Yablochkov invented the electric carbon arc lamp. 1876: Scottish inventor Alexander Graham Bell patented the telephone. 1877: American inventor Thomas Edison invented the phonograph. 1877: German industrialist Werner von Siemens developed a primitive loudspeaker. 1878: First electric street lighting in Paris, France 1878
These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. [5] He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and ...
Based on Tesla's new ideas for electrical equipment, including a thermo-magnetic motor idea, [66] they agreed to back the inventor financially and handle his patents. Together they formed the Tesla Electric Company in April 1887, with an agreement that profits from generated patents would go 1 ⁄ 3 to Tesla, 1 ⁄ 3 to Peck and Brown, and 1 ...
Granville Tailer Woods (April 23, 1856 – January 30, 1910) was an American inventor who held more than 50 patents in the United States. [1] He was the first African American mechanical and electrical engineer after the Civil War. [2] Self-taught, he concentrated most of his work on trains and streetcars.
Thomas E. Murray (October 21, 1860 – July 21, 1929) was an American inventor and businessman who developed electric power plants for New York City as well as many electrical devices which influenced life around the world, including the dimmer switch and screw-in fuse. It has been said that he "invented everything from the power plant up to ...