Word: layering
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Dates: during 1960-1969
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...routine developed during three foggy weeks of tests, a helicopter was flown to an altitude of 500 ft. above the mist, where it hovered until the turbulence of its downdraft traced a cir cular outline about 5,000 ft. in diameter on the upper layer of fog. The chopper then descended to 100 ft. above the fog and, at a speed of 30 m.p.h., began to fly in a gradually enlarging spiral pattern until it reached the edge of the circular outline. Within a minute, the fog began to fade away at the center of the circle. Ten minutes later...
There was no way to find comfort. Liquor was out, since one nip of frigid high-proof alcohol although still liquid would freeze the mouth and throat and cause almost instant death. Swaddled in layer upon layer of goosedown and fur, the snowmobilers looked as bulky as brown bears. One driver rigged his wife's electric hair dryer into his helmet and face mask for added warmth. But nothing seemed to help much. On the second day the temperature dropped to 70° below zero. As the snowmobilers plowed ahead through Moose Creek and the village of North Pole...
...toughest task was to develop a throwaway that was soft yet strong and moistureproof. For that, the engineers came up with a three-part design consisting of a quick-drying inner lining of soft rayon-like material, a middle layer of absorbent tissue wadding, and an outer sheet of waterproof polyethylene. By way of acknowledging that babies differ widely, the designers made Pampers in three sizes-"newborn," "daytime" and "extra strength" for overnight...
...foremen reports in that one of the groves has hit 26 degrees. It's always easy for veterans to pick out the novices in the waiting crowds: first-time smudgers stupidly wear clean clothes, not knowing that their whole body surfaces will be coated with a delightful smudge-oil layer by the time they get done. The novices also provide a few laughs for the crowd when they innocently try to drink some of the shed's "coffee," which tastes strangely like freshly drained smudge...
...later Quimbaya Indians of Colombia, who discovered how to make alloys of gold and copper and also mastered the sophisticated "lost-wax" technique of casting. First, the Indians made a model of the sculpture in beeswax or resin and covered it with a powdered charcoal and then a thick layer of clay. Next, they applied heat, melting the wax so that it ran out a channel in the hardened clay impression. They then used the impression as a breakable mold, pouring the molten gold in through the channel in the clay. It is the same method that dentists use today...