Word: stream
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Dates: during 1940-1949
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...with only one eye; the other one was removed because of a rare malignant tumor, retinoblastoma, which occurs in only one out of 500,000 children with eye trouble. Surgery is necessary to prevent the cancer from spreading along the optic nerve to the brain, or through the blood stream to the liver and the other organs of the body, causing death...
...months a year in his Manhattan office. The rest of the time he travels, on expense account, around the U.S. and Europe, picking up ideas. At home, on Park Avenue, he and his Czech-born wife Marie Thérèse, who speaks seven languages, entertain a babbling stream of foreign authors and artists, who are also tapped for ideas...
...which was also the age of William Cullen Bryant and James Fenimore Cooper. Seven years before his death in 1848, Cole explained that "American scenes are not destitute of historical and legendary associations; the great struggle for freedom has sanctified many a spot, and many a mountain stream and rock has its legend, worthy of the poet's pen or painter's pencil . . . And in looking over the uncultivated scene, the mind may travel far into futurity. Where the wolf roams, the plow shall glisten; on the grey crag shall rise temple and tower...
Slots & Flaps. The lift in an airplane's wings can be increased by increasing the angle of attack (i.e., the angle at which it meets the air stream). If the angle becomes too great, the air stream does not flow smoothly over the wing; it breaks into turbulent eddies. The wing loses most of its lift, and the stall that results can throw the airplane, into a disastrous spin. The danger of stalling can be lessened by slots behind the leading edge of the wing. The slots feed thin layers of air to the wing's upper side...
...have a movable feather called an "alula," which usually rests against the leading edge. When the bird needs extra lift from its wings (i.e., for a quick, high-angle climb), it increases its wings' angle of attack. Then it opens a slot by moving the alula. A thin stream of air rushes over the wing, preventing a stall...