Word: engineeer
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Dates: during 1960-1969
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Solitaire in Spades. Melancholy, superstitious, plagued by self-doubt, Campbell kept talking himself into retirement and right back out again. "Donald," says a psychiatrist who knew him, "was always trying to prove himself to himself and to his father and to the world." Last week, on Coniston Water, a small...
Grand Prix. The Formula One is the thoroughbred of racing cars. Nothing on wheels is quite so sophisticated. Formula Ones can cost up to $100,000 to build, and as much again to maintain for a single racing season. Twelve feet long and elegantly slender, they look like bright green...
While the use of the interplanetary billiard technique drastically cuts travel time, Stewart says, it does little to reduce the large amounts of fuel and great initial thrust required to send a spacecraft to the distant planets. But another rapidly developing propulsion system, the solar-powered ion engine, may well...
Accelerated by Ions. Unlike chemical rockets, which burn most of their fuel in a few minutes, ion engines can operate continuously for months and even years on an incredibly small amount of fuel. One experimental ion engine recently completed 341 days of steady operation. Thus, after a powerful chemical rocket...
By using an ion engine instead of chemical fuel for deep space acceleration, Stewart believes, scientists will be able to launch outer planet probes with rockets as small as the Atlas-Centaur, or send considerably larger payloads aloft with the Saturn 5. Combined with gravity assists from the planets, the...