SUPER TOUGH FIBERS HAVE BEEN A HOLY GRAIL FOR YEARS, and decades have been spent trying to clone the spider silk gene. Spider silk is the toughest material in the world, such that a thread the thickness of a pencil can hold back a jumbo jet. But this group has adopted the kind of silk spinning method of spiders to make nano-fibers. Not surprisingly, the applications include bullet-proof vests, footprints of the spider gene legend,
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