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    Ada Palmer (adapalmer@wandering.shop)'s status on Friday, 07-Nov-2025 07:42:24 JSTAda PalmerAda Palmer

    Two young mathematicians just broke a 330-year-old geometry riddle. Jakob Steininger, 30, and Sergey Yurkevich, 29, friends since maths-Olympiad days, have discovered the first known shape that can’t pass through a copy of itself, overturning a belief dating back to Prince Rupert’s 17th-century bet. A delightfully nerdy milestone that closes a 330-year chapter in geometry’s history. Quanta Magazine https://www.quantamagazine.org/first-shape-found-that-cant-pass-through-itself-20251024/?utm_source=substack&utm_medium=email
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    In conversationabout a month ago from wandering.shoppermalink

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    1. Domain not in remote thumbnail source whitelist: www.quantamagazine.org
      First Shape Found That Can’t Pass Through Itself
      from Erica Klarreich
      After more than three centuries, a geometry problem that originated with a royal bet has been solved.
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