Word: liquid
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Dates: during 1970-1979
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...simply placed a finger over the external breathing hole in the neck. Exhaled from the lungs, air was forced through the internal esophageal slit, allowing the pharynx to vibrate and create sounds. But the valve could open only when air from the lungs forced it open. When food or liquid came down the esophagus, the valve remained closed...
Shale. In a 16,000-sq.-mi. area where Colorado, Utah and Wyoming meet, vast deposits of shale hold an estimated 1.8 trillion bbl. of oil, roughly 60 times the nation's proven reserves of liquid petroleum. Shale is a hard rock, light gray to charcoal in color, that contains a solid organic material called kerogen. When heated to temperatures as high as 900° F, it breaks down into oil and gas. The richest shale deposits yield up to 2 bbl. of oil per ton. Not all shale is recoverable, but it could contribute...
Ocean Thermal Energy Conversion (OTEC) devices, which get power from the 45° F temperature differential that can exist between surface tropical water and the deep, are being studied by both Lockheed and TRW Inc. The idea is to use the warmer water to heat liquid ammonia into gas, which would drive a turbine, and then draw up cold water through long pipes to recool the gas into liquid. Tested as early as the 1930s, the idea has been shown to work, but it has never been very economical. A 10,000-Mw complex, enough for 6.6 million people, would...
...state's drinking age enough to keep freshmen and sophomores sober. Proposals ranged from a flat 21-year drinking age to one plan allowing 18-year-olds to drink in bars, 20-year-olds to buy wine and beer at liquor stores, and 21-year-olds to pursue any liquid vice they wished...
...number of small enterprises after World War II, including a restaurant, a flying school, a commercial air charter service and a distributorship for Nutrilite. The two left to start Amway, taking with them a number of discontented Nutrilite distributors. The first product that Amway marketed was an all-purpose liquid cleaner called Frisk, and today soaps and detergents remain the core of the business...