5 scientist who contributed in electromagnetic theory
Born in Hamburg on February 22, 1857, Hertz was the eldest of five children. [11], The Leyden jar, a type of capacitor for electrical energy in large quantities, was invented independently by Ewald Georg von Kleist on 11 October 1744 and by Pieter van Musschenbroek in 17451746 at Leiden University (the latter location giving the device its name). Electromagnetism | Smithsonian Institution Archives According to Priestley ('History of Electricity,' 3d ed., Vol. [11], In the first half of the 19th century many very important additions were made to the world's knowledge concerning electricity and magnetism. However, it was a British erudite and physician called Thomas Young who convincingly demonstrated the wave nature of light -contrary to the ideas of Newton who believed light was composed of a stream of particles- through the double-slit experiment, known today as Young's light-interference experiment. New York: Macmillan. General Electric review. Bose was the first to employ the "prime conductor" in such machines, this consisting of an iron rod held in the hand of a person whose body was insulated by standing on a block of resin. 1. If on the other hand the needle is fixed it will tend to retard the motion of the disc. The essay introduced several important concepts, among them a theorem similar to the modern Green's theorem, the idea of potential functions as currently used in physics, and the concept of what are now called Green's functions. He further showed that the negatively charged particles produced by radioactive materials, by heated materials, and by illuminated materials, were universal. "Non-electrics" conducted charges while "electrics" held the charge.[11][38]. Gilbert also discovered that a heated body lost its electricity and that moisture prevented the electrification of all bodies, due to the now well-known fact that moisture impaired the insulation of such bodies. on experimts. In a Letter from, The works of Benjamin Franklin: containing several political and historical tracts not included in any former ed., and many letters official and private, not hitherto published; with notes and a life of the author, Volume 6, another noted and careful experimenter in electricity and the discoverer of palladium and rhodium. In this theory, the vitreous and resinous electricities were regarded as imponderable fluids, each fluid being composed of mutually repellent particles while the particles of the opposite electricities are mutually attractive.
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