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Word: alfven (lookup in dictionary) (lookup stats)
Dates: during 1930-1939
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Usage:

...used to believe they were liberated in interstellar space during the coalescence of light elements into heavier ones. Dr. Fritz Zwicky of Caltech believes that cosmic rays may be the products of individual stellar explosions which occur all the time in some region or other of the universe. Hannes Alfven of Sweden's Upsala University holds that the rays are free-moving particles in space accelerated to cosmic ray energies by the magnetic fields of spinning double stars - somewhat as the man-made machine called the cyclotron speeds up atom-smashing particles to high velocities by means of repeated...

Author: /time Magazine | Title: Science: Ray Retraction | 7/11/1938 | See Source »

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