Word: weighted
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Dates: during 2000-2009
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...AERODYNAMICS 50% Proportion of the primary structure of Boeing's new Dreamliner aircraft, unveiled on July 9, that is made of carbon fiber and other composites instead of aluminum. The new materials will reduce the weight of the plane 20% Percentage by which the design of the Dreamliner will reduce fuel usage compared to similarly sized planes. But some environmental activists argue that the jet, which is smaller than its Airbus rivals, will result in more overall flights and therefore more air pollution...
Proportion of the primary structure of Boeing's new Dreamliner aircraft, unveiled on July 9, that is made of carbon fiber and other composites instead of aluminum. The new materials reduce the weight of the plane...
Like any other spacecraft, Dawn will have to be muscled off its launchpad by a conventional rocket burning conventional propellant. Once it climbs to near Earth space, however, everything will change. Of all the things that add weight to a spacecraft, fuel presents the most problems. The farther you're going, the more propellant you need, but every pound of it you add means more mass the engine must propel, which requires more fuel still, and on and on. A spacecraft like Dawn, which is designed not just to fly by its two targets but also to settle into orbit...
...compact 72-gal. (273 L) tank. A jolt of electricity energizes the gas, causing xenon ions to shoot out the back of the ship at 77,000 m.p.h. (124,000 km/h). A stream of charged atoms has somewhat less oomph than a burst of fire--less force than the weight of a single piece of paper, in fact--but over time it adds up. "It's acceleration with patience," says Rayman. "In the four days it takes to increase speed by 60 m.p.h., we'll use only 2 lbs. of propellant. If we keep thrusting, however, we can achieve extremely...
...hand of God today," he said, "is in every step of what happens with me and every human being that exists on this planet." Clinton shared the content of her prayer life with the audience: "You know, sometimes I say, Oh, Lord, why can't you help me lose weight?" she said to sympathetic laughter. "Sometimes, you know, it's praying for discernment, for wisdom, for strength, for courage...