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In 1941, a Swiss engineer named George de Mestral returned from a hunting trip with burs clinging to his pants and tangled in his dog’s coat. When de Mestral examined the seedpods under a microscope, he marveled at how they bristled with hooks ingeniously shaped to grasp at animal fur. “Most people stop at the ‘Oh, that’s cool, that’s what nature does,’ ” says Janine Benyus, a pioneer in the field of biomimicry, the science of studying natural models — anthills and lizard feet, say — to solve human problems. “He probably had to go back a lot of times,” she adds, “and really look” at those hooks. A bur, of course, can clamp onto wool socks with surprising force, and — even more amazing — once you pry it off, it can stick again and again, like glue that never wears out. But how to imitate this trick with human-made stuff? Eventually de Mestral learned to mold nylon into a fabric studded with tiny hooks or loops that acted like artificial burs.When Velcro first arrived in America, it caused a sensation. In 1958, a syndicated financial columnist named Sylvia Porter announced that “a new fastening device” had so bewitched her that she spent days playing with it. “It’s on my desk as I type this,” she wrote.
