Word: spinned
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...satellite, a magnesium sphere with a surface of silicon monoxide to keep it at proper temperature in sun or shadow, was put into a spin of about 50 r.p.m. The spin made it act like a gyroscope, keeping its axis always pointing in the same direction in space. At its perigee, the axis is parallel to the earth's surface. But a quarter of a revolution later the axis points vertically at the earth (see diagram). At apogee, the axis is parallel again...
...original hazards. The opening in the wall called the dedans might have been a water trough, and the player who can hit a ball into it wins the point. The serve is rolled along the side roof into the opponent's court, comes off it with an erratic spin. The oddly shaped racquets have changed little in design over hundreds of years. The game combines the strokes of lawn tennis with the problems of squash, compounded by the planned irregularities of the walls themselves...
...earth is generally considered a slightly flattened sphere, its flatness at the poles resulting from plastic response to its spinning motion. Last week Dr. John A. O'Keefe, assistant director of the Theoretical Division of the National Aeronautics and Space Administration, gave evidence before the American Physical Society that the earth is very slightly pear shaped. If its continents are evened out and its spin-flattening allowed for, it has a faint bulge around the North Pole, a faint depression around the South Pole, and a depressed ring in the north mid-latitudes (see diagram...
...extra 200-ft. bulge of rock over an area equivalent to the Atlantic Ocean. This extra mass would attract enough sea water to raise sea level about 50 ft. above the theoretical curve of an ideally plastic earth. None of the newfound bulges are large compared to the polar spin-flattening (about 13 miles), but they may cast new light on the earth's mysterious interior...
...scene: San Francisco's Morrison Planetarium. The occasion: an evening of Vortex, a "new form of theater based on electronics, optics and architecture," which in the last year and a half has put thousands of San Franciscans in a spin...