Word: tunneling
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Dates: during 1970-1979
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...home of Ishpeming, Mich.-the pilot told him to learn to build planes, not fly them-Johnson has lived aviation. After studying aeronautical engineering at the University of Michigan, he landed a job with Lockheed in the Depression year of 1933, largely on the basis of an impressive wind-tunnel analysis he had made of a model of a forthcoming Lockheed plane; the young graduate recommended a twin tail for the new all-metal, twin-engine Electra, Lockheed's first successful passenger plane (Neville Chamberlain used it to fly home from Munich). Reason: a single rudder offered inadequate control...
Underground Maze. Archaeologists once thought that Bronze Age people got their metals largely by chipping away at surface rocks; at most, they would tunnel only a few dozen feet. The newly discovered mine shows that the Bronze Age miners were far more skilled and adventurous than that. Located at the base of towering, 2,200-ft. red sandstone cliffs, the mine contains a complex, multilevel network of some 200 shafts and galleries. Although only a small portion has been excavated so far by Rothenberg's team, which included ten West German coal miners, the maze apparently reaches hundreds...
...second plan would require construction of a new tunnel from Putnam Square under Mt. Auburn St. through Brattle Square, where a new entrance would be placed. The tunnel would then swing up at Hilliard St. through the Radcliffe Yard to Chauncy...
Durano said that there would be "no digging" in Radcliffe Yard, but that the tunnel would be "bored" 20-40 feet under the surface, in no way endangering the foundations of any buildings. He estimated the cost at $35-45 million...
...final plan involves a tunnel from Putnam Square down Mt. Auburn St., through Brattle Square and Brattle St. under private property and the Cambridge Common. Durano estimated the cost at $75- to $96-million...