Word: ringed
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Dates: during 1980-1989
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...spirit of Iowa's own artist, Grant Wood, to stage the spectacle. The palette was filled with greens, from the dark of soybeans to the lighter grasslands, and the fields were etched by deep shadows and white gravel roads. Their borders were sprinkled with wild roses and ring-necked pheasants whose vivid fall plumage is just beginning to erupt. The dense stands of hybrid corn, with stalks 10-ft. high, are so well nourished with fertilizers that they look like flawless cut carpet laid meticulously from fence to fence. Not in local memories, which go back nearly 80 years...
...alternate theory holds that the rings and the gaps between them are in effect peaks and troughs in Saturn's own gravitational field, like the concentric ripples created by a rock dropped into the surface of a still pond. Another line of speculation attributes the formation of at least some of the rings to a periodic gravitational attraction, or "resonance," between the ring particles and Saturn's passing moons...
...soon for even a split of bubbly, however. Ovett, back in form after a leg injury, was contemplating races in West Germany this week in hopes of regaining his record. With Coe and Ovett, the postman always seems to ring twice...
Most of the observations will be aimed at answering questions raised by the earlier flight, with special emphasis on the rings. During one 13½-hr. period, for instance, Voyager 2's cameras will be taking pictures every 3.2 min. The movie-like sequence should not only show the formation and disintegration of the spokes during each rotation but also help explain what forces are acting on them. One theory: the spokes are in fact composed of dustlike particles lifted out of the thin ring plane by electrostatic forces perhaps created by the faint light of the distant...
Still another experiment involves Voyager 2's photopolarimeter, a light-measuring device that failed on the first flight.. As the spacecraft approaches the planet, the instrument will be aimed through the rings at Delta Scorpii, a far-off star. By measuring disruptions (or blinking) of the starlight caused by the intervening ring material, the scientists should get the most precise data yet on the number of rings, their density and width and the size of the stuff they are made...