Word: kevlar
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Dates: during 2000-2009
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...does a giant chemical company that made $1.8 billion last year with such products as bullet-stopping Kevlar and Nomex, a flame-resistant fiber, care about corporate social responsibility? Chad Holliday, DuPont's chairman and CEO, thinks it's the way to stay ahead globally. He spoke with TIME's ERIC ROSTON last month...
...Peter Mehiel Availability: Now, $850 to $1,200 To Learn More: hydroepic.com After decades of riding waves on boards made of foam and fiberglass, surfers have a high-tech alternative. Hydro Epic boards are hollow on the inside but have an extra-sturdy shell made of a carbon fiber-Kevlar composite and a thin aluminum honeycomb. To keep the air in the board from expanding and contracting in extreme heat or at high altitudes, there is a small vent at one end that lets air pass through while keeping water out. The radical design makes Hydro Epics stronger, faster...
High-tech fighting machines are by no means the only Pentagon purchases that suffer defects. The latest snafu concerns new combat helmets. Introduced in 1983 to replace the "steel pots" in use since 1941, the helmets are made of Kevlar, a man-made fiber that is lighter, yet stronger than many metals. But after buying three-quarters of a million at $85.20 apiece, the Department of Defense discovered that three manufacturers had delivered defective versions made with scrap material. Army officials say that even though the second-rate helmets offer more protection than the old steel models, "We ordered...
...creature had to be remarkably light for its size, possibly only about 140 Ibs. Its wing bones were hollow tubes, and its body structure must have evolved for minimum weight. To emulate nature, MacCready's design team is using strong but lightweight parts made of carbon-fiber tubing and Kevlar cloth...
...battles that still kill thousands in less well-equipped armies. Only 16% of American injuries in Iraq have been from bullets, according to Pentagon statistics. But the amputation rate of injured Americans in Iraq is 6% - about double that in previous wars, mostly because soldiers' ceramic-plated vests and Kevlar helmets still leave limbs vulnerable. These soldiers might have died in past wars, when bullets and shrapnel hit their unarmored torsos. While more and more soldiers are surviving battles, though, doctors have uncovered a new phenomenon among those who return: traumatic brain injuries caused by explosions that damage neurological fibers...