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...this silence? wonders Dr. Louis N. Ridenour, dean of the Graduate School of the University of Illinois, in the latest Bulletin of the Atomic Scientists. Are radiological poisons ineffective? Or are they so deadly that atom-minded governments have smothered all mention of them under blanket security...

Author: /time Magazine | Title: Science: Death Sand | 8/7/1950 | See Source »

...answer these questions, Ridenour turns to an article published in Vienna in 1948 by Austrian Physicist Hans Thirring. No possible breach of security here; Thirring had no information which was not available to all the world's physicists...

Author: /time Magazine | Title: Science: Death Sand | 8/7/1950 | See Source »

...concludes that a radioactive poison spread over the ground at the rate of two curies per square meter would give a man eight roentgens of radiation per hour. In about ten days this would build up to the lethal dose of 2,000 roentgens. The period of grace, thinks Ridenour, makes radiological poison a rather humane weapon. The inhabitants of a contaminated city could save their lives if they set out promptly...

Author: /time Magazine | Title: Science: Death Sand | 8/7/1950 | See Source »

...Manhattan. The U.S. chain-reacting piles at Hanford, Wash., Ridenour says, are now operating at a rate of at least 3,000,000 kilowatts. This means that the radioactive materials they produce in a month could contaminate (at the rate of two curies per square meter) about 144 square miles of territory. The area of Manhattan Island, Ridenour points out cheerfully, is slightly more than 22 square miles...

Author: /time Magazine | Title: Science: Death Sand | 8/7/1950 | See Source »

...Atomic Age" flared up in the Hotel Bradford ballroom last night when Martin Deutsch, professor at M.I.T. exploded a few nuclei to add a realistic touch to the proceedings. Featured on the program besides Deutsch and Shapley were Rear Admiral H.G. Bowen, Rev. Edward Conway, and Louis Ridenour, professor at M.I.T...

Author: NO WRITER ATTRIBUTED | Title: Exploding Atoms Demonstrated As Shapley Presides at Show | 5/21/1946 | See Source »

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