Word: mirroring
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Dates: during 1970-1979
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...more than 20 years, Trombe has championed solar furnaces as an ideal source of intensive heat for both industrial uses and scientific experimentation. In 1946 he fashioned his first sun stove out of a captured German antiaircraft searchlight mirror at an observatory near Paris. Moving to the old Pyrenean citadel town of Mont-Louis, where the sun shines as many as 200 days a year, he has since built five larger solar furnaces. Now, in masterly style, he has created his piéce de résistance on a hillside in the nearby ski resort of Odeillo. Compared with...
Delicate Adjustment. The furnace's appearance is as spectacular as its power. Its glittering eight-story-high parabolic reflector (roughly half the size of a football field) towers over Odeillo's centuries-old houses. Anchored against a reinforced concrete office and laboratory building, the huge concave mirror consists of 8,570 individual reflectors. For the furnace to operate efficiently, these small (18 inches square) mirrors must be precisely adjusted so that their light will converge exactly at the parabola's focal point 59 ft. in front of the giant reflector. Only half of the mirrors have been...
...huge to follow the sun itself, the parabolic reflector depends on the help of 63 smaller mirrors set in eight rows on a terraced slope in front of it. Called heliostats (from the Greek helios, sun; statos, to cause to stand still), they track the solar disk across the sky, capture its light and bounce it in parallel beams into the big mirror. The system involves some ingenious engineering. Each heliostat is controlled by its own photoelectric cells. Whenever one of the hehostats (each of which is made 180 individual mirrors) loses its lock on the sun, these tiny electric...
...finished casts are set up in "environments": a store window, before a mirror, or-in The Aerial View, the most elaborate image in Segal's new show-contemplating a diorama of New York at night. The Bowery shows an alcoholic collapsed on the pavement, with a man leaning casually against the rusty iron of a closed shopfront and staring neutrally at him. "I wasn't at all interested in the bum," says Segal. "What interests me is the uninvolved spectator there, and what's going through his head." Precisely. The unvarying subject of Segal...
...sale caps a decade of acquisitions for the aggressive Times Mirror Co. (after Time Inc. and McGraw-Hill, the third largest in publishing). In addition to the parent Los Angeles Times, the company has acquired the New American Library, the World Publishing Co., Popular Science and Outdoor Life magazines and, with the Washington Post, is partners in an increasingly profitable news service. Most recently, it offered more than $90 million for the Dallas Times Herald and its three local TV and radio stations...