Word: launching
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Dates: during 1990-1999
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...calculated the energy-to-weight ratio of various fuels. Fooling around with airtight chambers, he found that a rocket could indeed fly in a vacuum, thanks to Newton's laws of action and reaction. Fooling around with basic chemistry, he learned, most important, that if he hoped to launch a missile very far, he could never do it with the poor black powder that had long been the stuff of rocketry. Instead, he would need something with real propulsive oomph--a liquid like kerosene or liquid hydrogen, mixed with liquid oxygen to allow combustion to take place in the airless...
Goddard was thrilled with his triumph but resolved to say little about it. If people thought him daft when he was merely designing rockets, who knew what they'd say when the things actually started to fly? When word nonetheless leaked out about the launch and inquiries poured into Clark, Goddard answered each with a pinched, "Work is in progress; there is nothing to report." When he finished each new round of research, he'd file it under a deliberately misleading title--"Formulae for Silvering Mirrors," for example--lest it fall into the wrong hands...
...MILES. For Goddard, the East Coast was clearly becoming a cramped place to be. In 1930, with the promise of a $100,000 grant from financier Harry Guggenheim, Goddard and his wife Esther headed west to Roswell, N.Mex., where the land was vast and the launch weather good, and where the locals, they were told, minded their business...
...fighting days, knew the immune system could be triggered without infection, using deactivated, or "killed," viruses. And, as it turned out, his quick-and-dirty killed viruses were better suited to a crash program than Sabin's carefully attenuated live ones. By 1954, Salk and Francis were ready to launch the largest medical experiment yet carried out in the U.S., vaccinating more than 1 million kids ages six to nine, some with the vaccine, some with a placebo. The children weren't told which they were getting...
Since the March 14 launch of the site, theSpark.com has generated more than 50,000 registered users and traffic has reached up to 100,000 hits in one day, according to Yagan...