Word: hydrogenated
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Dates: during 1960-1969
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...have profound effects. Physicists Jerome Pressman, William Reidy and Winifred Tank of Geophysics Corp. of America have calculated that 25 tons of fluorine can scavenge out of the earth's atmosphere all the free electrons that now make long-distance radio communication possible. Some 25,000 tons of hydrogen, which is soon to be burned in just such vast quantities, could screen off the sun's ultraviolet light, changing the atmosphere's temperature, causing unpredictable and perhaps unpleasant effects on the earth's weather and climate...
Missed Targets. Everyone likes Rover -the White House, the Atomic Energy Commission, the National Aeronautics and Space Administration. Senator Anderson insists that nuclear-powered rocketry is as important to U.S. security as the hydrogen bomb. Moreover, the theory behind Rover is disarmingly simple. In present U.S. and Russian space rockets, thrust is produced by the combustion of highly volatile chemical propellants. In Rover, a small nuclear reactor will generate heat that will expand hydrogen. This, in turn, will be directed out of the rear of the rockets to provide thrust. Because the reactor and the hydrogen take up relatively little...
Radio astronomers are particularly intrigued by the special waves given off by cold hydrogen floating between the stars. These waves are a little longer than 21 cm. long when they leave the hydrogen cloud where they are generated. If they are slightly shorter than that when they are measured by an earthly radio telescope, this means that the hydrogen cloud must be moving rapidly toward the earth. If the waves are longer, the cloud is moving away. So the 21-cm. waves provide a handy tool for measuring the speed of the hydrogen clouds that form an important part...
...vacuum tube. As soon as the gas molecules pick up electric charges, they respond to electrical forces and are whisked through a charged grid at a predetermined speed. After traveling a short distance, they hit molecules of vaporized benzene (C6H6) and stick to them, forming nitrobenzene (C6H5NO2). The hydrogen atoms left out of the combination form gaseous hydrogen...
...neutrons from the reactor hit uranium atoms in the capsule, they caused the atoms to fission, or split. The atomic fragments shot apart with enormous energy (200 million electron volts per fission), splintering ammonia molecules and knocking them in every direction. The fragments recombined at once. Some formed gaseous hydrogen (H2) or nitrogen (N2). But about half the ammonia that reacted formed the much-desired hydrazine (N2H4...