Word: dived
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Dates: during 2000-2009
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...overcome the world's best pilots. That's what happened on July 18 over eastern Afghanistan, when two Air Force officers stumbled into a series of missed signals and blown procedures. The errors combined to send their F-15E screaming into a dark mountainside in a steep, controlled dive at 550 m.p.h., according to an Air Force investigation released last week. (See the top 10 most expensive military planes...
...mission commander asked McDowell if he felt "comfortable" performing the dangerous dive. "Sure," he responded. Seconds later, McDowell's F-15E began diving from 18,000 ft. After streaking through blackness for seven seconds at a speed of 420 ft. per second, the plane's collision-avoidance system audibly warned the crew to climb four times in quick succession. Large arrows pointing upwards flashed onto cockpit displays. The crew didn't respond. Video recorded aboard the doomed plane and evidence gleaned from the wreckage showed the crew did nothing to avoid the mountain or try to eject...
...human sleep cycle. Night-vision goggles reduce depth perception, especially when there's little ambient light and the ground is flat and barren. The crew "channelized" its attention on the attack run, ignoring warning signs that danger was imminent. Finally, "expectancy" played a role. The crew had expected to dive for 10 seconds before simulating the firing of their gun. So when the warnings sounded seven seconds into the dive, their reaction times slowed because they believed they still had thousands of feet of air beneath them...
...such problem: residents in Japan became bothered by the mini-sonic booms created by the bullet train as it exited tunnels near residential areas. Benyus said that the solution was found by turning to a bird called the Kingfisher, which catches its prey by dive-bombing into bodies of water without creating a single ripple thanks to certain properties of its tapering beak. Design firm JR West solved the noise issue by adapting the nose of the train to mimic the Kingfisher’s beak, increasing the train’s speed by 10 percent and reducing energy consumption...
Freshman Michael Stanton won the three-meter dive to give Harvard a victory in the first event, but the Lions seemed to be in control of the meet early on, gaining the lead after taking three of the top four spots in the 1000-yard freestyle—canceling out co-captain Alex Meyer’s individual victory...