Word: tankful
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Dates: during 1960-1969
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...behind-the-scenes forces that have molded America's military muscle, none have been more influential-and few more mysterious-than California's Rand Corp., a private, nonprofit "think tank" located in a plain white building in Santa Monica. And of all the high-powered highbrows who have helped build Rand (for Research and Development), no one has been more effective than silver-haired, rough-featured Franklin R. Collbohm, 59, head of the organization since it was created under the patronage of Army Air Forces General Henry H. ("Hap") Arnold 20 years...
...question remained: would the theory prove practical in space? To find out, NASA engineers installed television cameras inside the SIV B's hydrogen fuel tank. All through the acceleration of blastoff, and while the Saturn I first stage was pushing the SIV B aloft, the TV screens at the Houston control center showed the liquid hydrogen settled and calm on the bottom of the tank, its surface barely rippling. After the first stage had dropped away and the SIV B's engine was fired to insert it into orbit, the level of the liquid hydrogen could be seen...
...Sloshing. Then, with the SIV B in orbit and its engine shut down, the TV screens showed a weird transformation in the fuel tank. Now weightless, globules of liquid hydrogen ripped loose from the churning surface and began to drift upward. Ground controllers immediately radioed signals that opened the SIV B's tank vents, allowing escaping gases to accelerate the vehicle slightly. On the screen, the globs could be seen obediently settling back to the surface. "It looks calm," the controllers reported. "It's behaving itself. There's no sloshing...
...With its tank vents still spewing tiny jets of gas, the slowly accelerating SIV B was then put through a simulated engine restart. Valves at the bottom of the tank opened, allowing liquid hydrogen to flow into the combustion chamber. Clearly visible on TV, the dwindling fuel hugged the bottom of the tank, its surface calm...
...comeback of the recorder has been stimulated by the resurgence of interest in baroque music. More than that, the instrument has several appealing points. It is inexpensive, ranging from $3 to $10 for popular home models, up to $700 for a seven-foot professional contrabass that resembles an anti tank weapon. It is easy on the neighbors, and playing it, as Hamlet observed, "is as easy as lying...