Word: dirac
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This technique has become of great practical importance for investigating crystal structures. Meanwhile, with the impetus provided by this experimental confirmation, the wave theory was developed by de Broglie. Heisenberg, Schroedinger and Dirac into the monumental theoretical structure which is modern quantum Mechanics. All these theorists are Nobel Prizewinners...
Mathematical physicists use the same three tools commonly employed by novelists and amateur race track bettors: pencil, paper and imagination. One who wields these tools brilliantly is Paul Adrien Maurice Dirac of Cambridge University, who won a Nobel Prize in 1933 for his powerful contributions to atomic theory and who is one of the half-dozen greatest mathematical logicians in the world. In the U. S. last week arrived the British journal Nature with an article by Dr. Dirac which he began as follows...
...Dirac then proposed to construct a new universe out of the leftovers. He had noticed that another scientist of imagination, Sir Arthur Stanley Eddington, had arrived at theoretical values for certain constants, such as the quantity of matter in the universe (using the proton as a unit) and the ratio of the electric to the gravitational force between proton and electron. These two Eddington values worked out at 10 78 (10 multiplied by itself 77 times) and 10 39 . Although, as Dirac says, "Eddington's arguments are not always rigorous," they nevertheless gave him "the feeling that they...
...Dirac took a short-time scale figure for the age of the universe, expressed it in terms of the atomic constant e²/mc³. The figure turned out to be approximately the same as Eddington's 10 39 . The square of the universe's age would therefore be equal to Eddington's other figure, 10 78 . Armed with these two fine coincidences, Dirac next proposed to dispense with the giant numbers and simply say that the ratio of electrical to gravitational force between proton and electron equals t, the age of the universe, and the amount...
...promised to devote the rest of his life to the search for and the formulation of a Unified Field Theory which will encompass all Nature. He has laid promising foundations (TIME, July 15, 1935). Other work on the problem has been done by Britain's Paul Adrien Maurice Dirac, German Exile Max Born, France's Elie Cartan. Last week another approach was suggested by Dr. George David Birkhoff of Harvard...