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At the time of the Miller–Urey experiment, Harold Urey was a Professor of Chemistry at the University of Chicago who had a well-renowned career, including receiving the Nobel Prize in Chemistry in 1934 for his isolation of deuterium [21] and leading efforts to use gaseous diffusion for uranium isotope enrichment in support of the Manhattan ...
Hahn was fascinated by chemistry and spent years conducting amateur chemistry experiments, which sometimes caused small explosions and other mishaps. He was inspired in part by reading The Golden Book of Chemistry Experiments and tried to collect samples of every element in the periodic table, including the radioactive ones.
In his classic experiment, Thomson measured the mass-to-charge ratio of the cathode rays by measuring how much they were deflected by a magnetic field and comparing this with the electric deflection. He used the same apparatus as in his previous experiment, but placed the discharge tube between the poles of a large electromagnet.
Stanley Lloyd Miller (March 7, 1930 – May 20, 2007) was an American chemist who made important experiments concerning the origin of life by demonstrating that a wide range of vital organic compounds can be synthesized by fairly simple chemical processes from inorganic substances.
This physics experiment sat on a shelf in a lecture hall at Trinity College unmonitored for decades as it dripped a number of times from the funnel to the receiving jar below, also gathering layers of dust. [17] [18] [19] In April 2013, about a decade after the previous pitch drop, physicists at Trinity College noticed that another drip was ...
Millikan in 1891. Robert Andrews Millikan was born on March 22, 1868, in Morrison, Illinois. [6] He went to high school in Maquoketa, Iowa and received a bachelor's degree in the classics from Oberlin College in 1891 and his doctorate in physics from Columbia University in 1895 [11] – he was the first to earn a Ph.D. from that department.
The Harold C. Urey Middle School in Walkerton, Indiana, is also named for him, [68] as is Urey Hall, the chemistry building at Revelle College, UCSD, in La Jolla [69] and the Harold C. Urey Lecture Hall at the University of Montana. [70] UCSD has also established a Harold C. Urey chair whose first holder was James Arnold. [71]
The results of the Michelson–Morley experiments supported Albert Einstein's strong postulate in 1905 that the speed of light is a constant in all inertial frames of reference for his Special Theory of Relativity. [2] Morley also collaborated with Dayton Miller on positive aether experiments after his work with Michelson. [2]