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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 ...
"The Blacksmith's Motor. Electricity, magnetism, and motion: A self-taught Vermonter pointed the direction for lighting the world." Mechanical Engineering, July 1999. Davenport's patent for the electric motor, issued in early 1837, Today in Technology History February 25 (direct link) Smalley and Davenport's shop
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
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 ...
William Sturgeon invented the electromagnet in 1825. [19] Electromagnets were then used in the first practical engineering application of electricity by William Fothergill Cooke and Charles Wheatstone who co-developed a telegraph system that used a number of needles on a board which were moved to point to letters of the alphabet. A five needle ...
Heinrich Hertz's nephew, Gustav Ludwig Hertz was a Nobel Prize winner, and Gustav's son Carl Helmut Hertz invented medical ultrasonography. His daughter Mathilde Carmen Hertz was a well-known biologist and comparative psychologist.
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 ...
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 ...