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...because it was more strongly bent above the lead plate. Also it had curved to the left. In that magnetic field only a positively charged particle could be traveling upward and curving to the left. In all features the particle was the "anti-electron," the mathematical "hole" imagined by Dirac. Its life was brief-about a third of a millionth of a second. But Karl Kelchner Darrow of Bell Telephone Laboratories later pronounced it "probably the most famous individual corpuscle in the history of physics." Dr. Anderson called his discovery the positive electron, or positron...

Author: /time Magazine | Title: Science: Three Prizes | 11/23/1936 | See Source »

Forecaster Dirac won a Nobel Prize in 1933. Positrons have now been produced at the rate of 30,000 per second by gamma rays, and the Curie-Joliots of Paris observed them shooting out of light-weight elements in their first experiments with artificial radioactivity. It has even been suggested, despite their brief lives in the laboratory, that positrons may be a component of the primary cosmic rays...

Author: /time Magazine | Title: Science: Three Prizes | 11/23/1936 | See Source »

...young Briton of Swiss extraction who is indisputably one of the few great mathematical logicians in the world. His Principles oj Quantum Mechanics is a monument of human cerebration. That book is utterly incomprehensible to ordinary men who had never heard of its author until Paul Adrien Maurice Dirac won a Nobel Prize last year. Only a few of the ablest scholar-scientists can follow the chain of symbolic reasoning in Principles of Quantum Mechanics, and among them none is more articulate, more authoritative, more sensible than Sir James Hopwood Jeans, president of the British Association for the Advancement...

Author: /time Magazine | Title: Science: Indisputable Universe | 11/19/1934 | See Source »

...displayed to some 300,000 readers in thin, lucid books. Sir James again led his hearers over the trail from the comfortable Victorian universe of jelly-like ethers, billiard-ball particles, gears and levers to the disconcerting, fantastic universe built by Rutherford, Planck. Bohr, Einstein. Heisenberg. Schrodinger, Dirac and others where the electron dances beyond space and time in a field of mathematical formulae...

Author: /time Magazine | Title: Science: Advancement at Aberdeen | 9/17/1934 | See Source »

...important synthesis, which last week in Washington he exhibited on a blackboard. Relativity treats matter as mass; quantum theory treats it as waves of probability. Sir Arthur's new quadratic equation treats it as both. Three years ago Cambridge University's astute young Paul Adrien Maurice Dirac, writing the most complete exposition of quantum theory in existence, saw "the relativistic formulation of the quantum mechanics" as a great problem which physicists would sooner or later have to tackle. What Sir Arthur showed last week seemed a good start...

Author: /time Magazine | Title: Science: Cosmology | 5/7/1934 | See Source »

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