Word: liquidizer
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...that inflammable gas, he said. early-morning explosion at the , which is operated jointly Harvard and M.I.T., injured 7 and killed a 19-year-old technology At the time of the blast, the chamber was in the final stages of a program for cooling it and filling it with liquid hydrogen that was being tried for the first time...
...catastrophic failures out of five firings, an accidental explosion on a test stand, a three-year lag in the development schedule, and a $552 million price tag have all earned NASA's liquid-hydrogen-fueled Centaur rocket such derisive nicknames as "the Hangar Queen" and "the Edsel of the Missile Industry." But as it separated from its Atlas booster and ignited in a burst of pale blue flame high above the Atlantic Ocean last week, Centaur took on its proper dignity. The most powerful rocket of its size in the world, built to fire a one-ton Surveyor spacecraft...
...that made up one picture. And by the time the signals reached a tracking station, they were no stronger than one-billionth of one-billionth of a watt. Those faint whispers were picked up by big-dish antennas and amplified a thousand times as they were piped through a liquid helium maser. So slow was the transmission rate that no complete picture could be received at any one tracking station. As the Earth's rotation carried one station out of range, another moved into position to collect the rest of the message...
Explosive Energy. The same property that makes liquid hydrogen so intractable makes it a powerful and efficient rocket fuel. For use in rockets, liquid hydrogen is changed to its gaseous state, mixed with an oxydizing agent and ignited. Its explosive energy is greater per unit of weight than that of any other fuel now in use: one-third more thrust for each pound of liquid hydrogen than for the same weight of kerosene-oxygen fuels. "The difference in performance of liquid hydrogen over any other rocket fuel," says Norman C. Reuel of North American Aviation's Rocketdyne division, "represents...
...Liquid hydrogen is the fuel for two 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...