Word: spacecrafts
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Dates: during 1960-1969
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Trying Harder. From San Diego, Humphrey went to Los Angeles for a California Democratic fund-raising dinner. His speech, while lauding President Johnson, fell admirably short of Jack Valenti's fulsome performance. Next day Humphrey was off to Houston for a two-hour inspection of the Manned Spacecraft Center, then up to Oklahoma City, where he attended the Oklahoma Democratic Party's first $ 100-a-plate dinner (hamburgers and cole slaw) and delivered a ringing, one-hour sermon on the glories of the Great Society. He was back in Washington for only twelve hours before Johnson dispatched...
...only three weeks after Mariner III failed because it could not jettison its protective shroud. A powerful Atlas-Agena rocket lofted the 575-lb. Mariner IV through Earth's atmosphere, then kicked it loose to take off on its own like a great flying windmill. The spacecraft, freed from a cocoon-like covering, unfolded the four solar panels that powered its instruments by converting the sun's energy into electricity. With those panels deployed, it measured 22 ft. 7½ in. across and 9½ ft. to the top of its antenna. Curving into a wide-swinging, elliptical...
...aluminum alloy, carried 138,000 components, including 31,696 delicate electronic components ranging from a computer to a small, lO½-watt radio transmitter. It was programmed and equipped to send to Earth a continuous stream of reports on 39 scientific and 90 engineering measurements. Crowded into the spacecraft were a new type of helium gas magnetometer to study magnetic fields, an ionization chamber and Geiger counter to measure galactic cosmic rays, a collector cup to measure the solar wind's barrage of protons, a cosmic-ray telescope and cosmic-dust collector -plus the all-important TV camera...
...John Casani, 33, Mariner IV's meticulous systems manager, has a reputation among his colleagues as being the man who knows the most about every part of the spacecraft...
...important U.S. rocket engines-Pratt & Whitney's RL-10 and Rocketdyne's J2. The RL-10 powers the second stage of Saturn 1, scheduled for early Apollo flights; two RL-10s combine to form the Centaur stage of the Atlas-Centaur system built to soft-land Surveyor spacecraft on the moon. J-2 forms the second and third stages of the Saturn V designed for Apollo's man-carrying lunar missions. In the near future, violent but versatile liquid hydrogen may become still more familiar as a fuel for supersonic aircraft...