Search Details

Word: cyclotron (lookup in dictionary) (lookup stats)
Dates: all
Sort By: most recent first (reverse)


Usage:

...hundred-ton cyclotron, one of the most powerful atom-smashers in the world, will be on view. In addition the visitor may see the new indoor wind-tunnel for testing airplane design; the new electron bombardment furnace, producing temperatures half as hot as the sun; the 100,000 - volt storage battery, most powerful in the world; the high-frequency radio equipment making automatic records of condition in the ionosphere; experiments which have led to a new theory of mountain formation; and many other laboratory features...

Author: NO WRITER ATTRIBUTED | Title: Engineering Society to Exhibit New Equipment and Methods Tomorrow | 3/6/1939 | See Source »

Ernest O. Lawrence's cyclotron which is so potent it could not be shown at the fair for fear of sterilizing all who came near...

Author: /time Magazine | Title: CALIFORNIA: Western Wonderland | 2/27/1939 | See Source »

...electrode inside an inverted pear-shaped steel tank, 55 ft. high- only the big end of which is visible from the exterior (see cut)-discharges its high voltage in direct current. It does not speed its projectiles to such high energies as are obtainable with the "cyclotron," but the Carnegie and Westinghouse researchers claim an advantage for precision measurements in the fact that their voltage is controlled and steady...

Author: /time Magazine | Title: Science: Destructive Impulses | 12/26/1938 | See Source »

Main reason why Dr. Lawrence is so loath to part with his cyclotron is that he is now engaged in the most significant problem of his career: the effect of neutron rays on cancer of human beings. The cyclotron whirls ions of heavy hydrogen (deuterons) between the poles of a huge electromagnet, then hurls them into a drumlike vacuum chamber. When they are charged with nearly eight million volts of energy, the ions are shot against a target of light metal, usually beryllium. The bullets knock out streams of neutrons, tiny particles about the same weight as protons but carrying...

Author: /time Magazine | Title: Medicine: Cyclotron for Cancer | 11/28/1938 | See Source »

...Orlando Lawrence $30,000 to use in cancer experiments. Last week Dr. Ludvig Hektoen, director of the National Advisory Cancer Council, announced that a group of cancer patients, drawn from a special list in the University of California's San Francisco teaching hospital, have been placed under the cyclotron for treatment. Wary of raising false hopes, Dr. Hektoen warned that "these treatments are purely experimental...

Author: /time Magazine | Title: Medicine: Cyclotron for Cancer | 11/28/1938 | See Source »

Previous | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | Next