Word: containing
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Dates: during 1970-1979
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...through changes in design and operating processes. Recycling can also produce big savings. In the nonferrous-metals industry, for example, recycling uses only 20% as much energy as is required to refine the metal originally. Freeman stressed the point: "Our solid wastes by and large contain a better-grade ore than our mines...
...needs may lie in thermonuclear fusion. The process that fires the sun and all the other stars, fusion releases enormous amounts of energy-but only small amounts of dangerous radioactivity -through the combination of light atoms of hydrogen to form heavier atoms of helium. The earth's seas contain an almost unlimited store of an isotope of hydrogen especially suitable as fusion fuel: deuterium, or heavy hydrogen...
...documents will probably contain additional information about the burglary at the Beverly Hills office of Dr. Lewis J. Fielding, the psychiatrist who once treated Daniel Ellsberg...
...than 400,000 tons of grain to the stricken nations. This is a stopgap measure at best. U.S. officials in Dakar estimate that grain gifts may have to continue for another 30 years. They also believe that it may take three decades to build irrigation and reforestation projects to contain the desert-assuming that the poverty-stricken sub-Saharan nations can find the billions necessary...
...palm-size pacemakers, developed by the ARCO Nuclear Co. of Leechburg, Pa., with a grant from the Atomic Energy Commission, use no batteries. They contain 400 mg. of the radioactive isotope plutonium 238. As it decays, the plutonium generates heat. That raises the temperature of a thermocouple system, which converts the heat to electrical power for the pacemaker. The device is similar to the nuclear pacemaker inserted in a French patient in 1970 and now used by 24 Americans. Both pacemakers are expected to operate for at least ten years. That is long enough to make the previous chest operation...