Word: plateaus
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Dates: during 1930-1939
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...electrodes fine, threadlike wires lead to the machine which detects, through scalp and skull, faint electric brain impulses. A connected drum and ink recorder charts patterns. Normal frequency is ten shallow, rippling, regular waves a second. Abnormal brain waves, often running to 25 a second, show up as irregular plateaus, spikes or scallops. Skilled interpreters can read characteristic abnormal wave patterns as indications of approaching epilepsy, can even use them to locate surface brain tumors. Typical epilepsy pattern looks very much like a string of trylons and perispheres...
...mountain-girdled upper valley of the Yangtze, an area approximately 1,000 miles from East to West and 1,300 miles from North to South. Below it lie the steaming jungles of Burma and French Indo-China, west of it lie the mountain fastnesses of Tibet, northwestward the desert plateaus of Turkestan (Sinkiang) and Mongolia...
That was all, but for one day it made a cataclysm in the barometric topography of the U. S. New England suddenly found itself at the bottom of an atmospheric abyss between two great plateaus (see map). The effect would hardly have been much more catastrophic had a new Grand Canyon of the Colorado suddenly opened in the Connecticut Valley...
...clay and color goes on in a country, the finer fine arts it may produce. Holger Cahill is fond of using a fact of nature to illustrate his theory of national art: "You don't often find mountains where there is no plateau." Hostile critics have rejoined that plateaus and genuine art movements alike are beyond the power of governments to create. But even such critics admit that the Federal Art Project has gone about its job in an orderly manner...
...Rain forests," Loveridge explained yesterday, "are patches of dense forest on isolated plateaus in East Africa. They're being rapidly enroached on by plantations, and once the trees are cut, no more grow back. The sun is so hot that it practically sterilizes the ground...