Word: tanks
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...devoted band of mostly religious Christians, including hundreds of scientists, engineers, theologians and philosophers, has written papers and books, contributed to symposiums on the perceived problems with Darwin's theory. The headquarters for such thinking is the Center for Science and Culture at a nonpartisan but generally conservative think tank called the Discovery Institute, founded in Seattle...
Only hours before the docking, NASA announced that the entire shuttle fleet was being grounded again, after evidence that four pieces of insulating foam--the largest the size of a skateboard--had spun off the ship's external fuel tank during lift-off, just the kind of debris that damaged Columbia's wing and doomed the ship. Only one small piece may have struck the shuttle this time, glancing off a wing with so little force it didn't register on impact sensors. But a camera mounted on the shuttle's 50-ft. arm as well as photos taken from...
Most of the debris came from a nettlesome area of the tank known as the protuberance air load (PAL) ramp, a ridge designed to minimize turbulence around cables and fuel lines. Tests and earlier flights convinced NASA that the PAL could withstand lift-off. "Obviously," says flight operations manager John Shannon, "we were wrong...
...weighed 0.9 lbs. (0.4 kg), about half the size of the piece that downed Columbia ?THE TROUBLESOME RAMP Most of the falling bits came from the so-called PAL ramp, a ridge of hand-sprayed foam designed to protect fuel lines from buffeting on takeoff ?EXTERNAL FUEL TANK The tank, 154 ft. (47 m) tall and 27.6 ft. (8.4 m) wide, carries 535,000 gal. (2 million liters) of frigid liquid oxygen and hydrogen fuel. It is covered by polyurethane-like foam that keeps the fuel cool, prevents ice from forming on the exterior and protects the tank...
...were marked by bellicose rhetoric from the North, but Hill described the current bilateral discussions as "businesslike." Considering the high stakes involved, "neither Pyongyang nor Washington want to be blamed for having things break down," says Peter Beck, Seoul-based head of the International Crisis Group, an independent think tank. "There is incentive for both sides to at least feign wanting to talk...