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...transmutation of elements with an 85-ton magnet. Now they have a 225-ton machine for applying the radioactivity of their cracked atoms (and the neutrons which cause it) to biological and medicinal research. This giant hurls tiny bullets with record-breaking energies of more than 30,000,000 electron-volts...

Author: /time Magazine | Title: Science: Dollars for Atoms | 4/22/1940 | See Source »

...some time Dr. Lawrence has been dreaming, talking and planning a cyclotron of several thousand tons, which would yield projectile energies of more than 100,000,000 electron-volts. For safety, it would be housed in a vast laboratory buried in a hillside. Last week his plans for a 4,000-ton machine were all ready. The Rockefeller Foundation made its vitalizing gift contingent on the university's raising another $250,000; but it seemed certain the university would...

Author: /time Magazine | Title: Science: Dollars for Atoms | 4/22/1940 | See Source »

...Lawrence Olin Brockway, 32, of the University of Michigan: the A.C.S. prize of $1,000 given each year to a chemist under 35 who shows unusual promise in research; for charting, by means of electron diffraction, the structures of more than 100 organic and inorganic compounds...

Author: /time Magazine | Title: Science: Compounds & Concoctions | 4/22/1940 | See Source »

...hardheaded physicists, the idea of releasing and harnessing this energy was a wild dream. Then, early in 1939, Hahn and Strassmann of Germany, with help from France, Sweden and Denmark, used neutrons to break uranium atoms into two nearly equal fragments, with release of some 200,000,000 electron-volts of atomic energy per atom (TIME, Feb. 6; March 13). This was by far the most violent atomic explosion ever effected by human agency...

Author: /time Magazine | Title: Science: Might-Have-Been | 2/12/1940 | See Source »

Heavy atoms like uranium had been chipped before, but not cracked in two. Moreover, the most effective agents for splitting or "fission" of uranium were "slow" neutrons with initial energies of only a fraction of one electron-volt, so that the energy profit from one fission was enormous...

Author: /time Magazine | Title: Science: Might-Have-Been | 2/12/1940 | See Source »

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