Word: atomic
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Dates: during 1940-1940
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...Atomic Radio. Professor Isidor Isaac Rabi and associates of Columbia University showed that individual atoms send out radio waves in the broadcast and shortwave ranges-one and one-half to 1,000 metres. Naturally the energy of each wave is tiny and each atom sends out a wave only once in 1,000 to 100,000,000 years. But there are so many billions of atoms in a small pinch of substance that Dr. Rabi gets a continuous program on his detector, which is a ribbon of incandescent tungsten in an oscillating electromagnetic field. He expects to use atomic radio...
Uranium Attack. The Department of Terrestrial Magnetism has a powerfully equipped atom-smashing laboratory, headed by Dr. Merle Anthony Tuve. Early this year, when two Germans announced disintegration of the heavy uranium atom with release of 200,000,000 electron-volts of energy (most powerful man-made atomic explosion), Dr. Tuve and co-workers promptly confirmed the discovery, added the find that the uranium fragments become radioactive, continuing to emit particles for a few seconds after the impacts have stopped...