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    Color-Changing Material Unites the Math and Physics of Knots

    Reprinted with permission from Quanta Magazine’s Abstractions blog. One sunny day in the summer of 2019, Mathias Kolle, a professor at the Massachusetts Institute of Technology, took a couple of eminent colleagues out sailing. They talked about their research. They had some drinks. Then Kolle noticed something was off: A rowboat tied to his boat had […]