Word: testing
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Dates: during 1960-1969
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...Minutemen and 54 Titan Us, is more than double Russia's stockpile of 470 land-based missiles. But London's Institute for Strategic Studies reported last week that the Russians are closing the gap; as for the Chinese, the I.S.S. noted that they have begun test-firing a missile with a 400-mile range...
Others kept working. Using computers, engineers calculated the rate at which the helium leak would decrease as pressure dropped. At Hughes Aircraft (Surveyor's designer and builder) and at a JPL test site, propulsion experts hurriedly put duplicate vernier engines through tests to determine their performance with low helium pressures. Feeding the results into computers, JPL scientists took less than 40 hours to work out a new and complex lunar landing sequence...
Then they put it to the crucial test of action. First they fired Surveyor's vernier engines for 33 seconds to consume more fuel and reduce the craft's landing weight. New instructions were radioed to Surveyor's memory bank and programmed into ground-based computers. As a result, the craft's main retrorocket began firing at a height of 26 miles above the lunar surface, instead of the originally planned 52 miles. It shut off at an altitude of only 4,400 ft., instead of 40,000 ft., after braking Surveyor...
...about 20. One noteworthy addition this year is improved control over exhaust emission. Still left undecided is whether front-seat shoulder harnesses will be mandatory on all new cars starting Jan. 1. The National Traffic Safety Bureau had issued the order, but recently its members viewed a disturbing G.M. test film of a simulated car crash. At impact, the lap straps did not prevent the heads of dummies in the back seat from being thrown forward, causing them to bang against the heads of shoulder-harnessed dummies in the front seat. As a result, the bureau decided that further research...
Buildings & Brides. Another coup came last year when Kroyer was called upon to salvage a 2,700-ton steamer that had sunk in Kuwait harbor and could not be raised by conventional pumping. Though he had never raised any vessel bigger than a test tube, Lab-lubber Kroyer had the answer. He shot the hull full of pea-sized, high-flotation, plastic-foam pellets until it bobbed to the surface, pocketed a handsome...