Mike Vogt (@vogtmike.bsky.social)

Yes, I am excited about the date. The 3-4-5 right triangle was known long before the theorem. An Egyptian writing that described how to use a rope with 12 equally spaced knots to measure a right angle supposedly gave Pythagoras the idea for his eponymous theorem. www.npr.org/2025/09/16/n...

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On 9/16/25, celebrate a date of mathematical beauty Pythagorean Triple Square Day, as one man affectionately calls 9/16/25, is a day like no other this century. https://www.npr.org/2025/09/16/nx-s1-5535545/pythagorean-triple-square-day-9-16-25

18 days ago