Millikan

Robert Andrew Millikan was in born in Morrison, Illinois. He was educated at Columbia University and the universities of Berlin and Gottingen. He later joined the physics professor of the University of Chicago and in 1921 he became the director of California tot of Technology¡¦s Norman Bridge Laboratory of Physics. Mallikan was in force(p) known in the physics world and has done tests on x-rays, cosmic rays and Plank¡¦s constant (the constant you melt down out by a light¡¦s oftenness to rush its quantum). In 1909, Mallikan used his famous ¡§ oil colour in drop¡¨ experiment and calculated the charge and visual gumption of a single negatron. He did so by quantity how quickly oil drops dropped among two charged metal equilibrium homes. The positively charged plate was on the top and the negatively charged plate was determined on the bottom. By touchstone and comparing how fast the oil drops fell when the plates were charged and uncharged, he calculated the c harge of a single electron. Because each measuring rod was a multiple of ¡V1.6 * 10-19 coulombs, he concluded this was the charge. after(prenominal) he found out the charge, he used the electron charge ¡V to ¡V mass ratio to bechance the mass of a single electron which was 9.109 *10-28 grams. These discoveries eventually brought Mallikan the distinguished Prize for Physics in 1923. If you want to get a full essay, order it on our website: OrderEssay.net

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