More than a few of us have had that moment of panic when our headphone cords catch on an object and cut the listening short -- sometimes permanently. Researchers at North Carolina State University could help mitigate those minor musical catastrophes with wiring that stretches up to eight times its normal length. The method fills an elastic polymer tube with a liquid gallium and indium alloy that delivers the electricity. By keeping the materials separate, unlike many past attempts, the solution promises the best of both worlds: the cond
