Scientists have developed a magnetic ink that lets wearable gadgets "heal themselves," said Steph Yin at The New York Times. Smart clothing — think sports bras that monitor a workout or baby onesies that track a newborn's sleeping — is expected to be tech's next big thing. But current printable electronics are fragile and prone to tearing. A nanoengineering team at the University of California, San Diego, has developed a possible solution: ink made from ground neodymium magnets. When a fabric containing the ink breaks, the particles attract one another and close the gap.
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