Word: layering
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...educational standards if Russia were inhabited solely by musk oxen, Gould does not hesitate to point with alarm at the Red satellites long after the furor has ceased to be fashionable. Typically, he orates: "We are like penguins wrapped in blubber. We have wrapped ourselves in such a layer of luxury we are virtually impervious to what goes on in the world around us. We may be unable to wake up in time to meet the crisis that Sputnik graphically posed...
...diverticulum (Latin for a small bypath) of the large bowel is a little pouch or sac formed by pressure inside the gut, forcing the inner layer (mucosa) through a weak spot in the outer, muscular layers. It may be no bigger than a BB shot, or it may be the size of a plum with a stalklike neck. If the neck is extremely narrow, fecal matter forced into the diverticulum will stay there, setting up an ever-present threat of infection and making the condition harder to detect since the barium used to get X-ray contrast may not penetrate...
...whole trench is conveniently capped by a layer of impermeable siltstone a few hundred feet below the present surface. Beneath it, porous rock accumulates steam like a kind of natural boiler. A well only 1,000 ft. deep taps this reservoir. Some of the steam is "juvenile," coming from water that was trapped in the deep interior when the earth was young and rising upward through the deep faults. The rest derives from surface water that has trickled down through cracks and been turned to steam by heat from below. When the steam gets to the surface, its pressure...
Professor Greg was very thin, and his white skull seemed to be almost visible through the thin layer of skin. In looking at him, one might entertain the fancy that he was a life-like statue. Once a student had said that during his visit with Professor Greg he had somehow felt like posterity itself being able to talk with the living past. He had also said that listening to Professor Greg was like being inland and lying in bed at night listening to the subdued roar of the ocean. This latter remark had reference to the reputation Professor Greg...
...Director Shmuel Yeivin of Israel's Department of Antiquities set 100 laborers digging into Tell Goliath, as it came to be called. On top they found a largely Arab cemetery. Below it were traces of Greek and Persian influence. Even lower was an Israelite layer, which showed signs of a great fire that Yeivin thinks may have raged in 586 B.C., during the Babylonian invasion under Nebuchadnezzar. Beneath was a city of the Canaanites, who occupied the Promised Land before Joshua's invasion...