In the world of social media, “keeping receipts” refers to the practice of storing evidence that may come in handy for a callout post at a later date. For [Teddy Warner], though, it’s more applicable ...

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That became readily apparent on Saturday, when he recited 385 digits of pi from memory. It was part of a Pi Day celebration he organized in a Portland coffee shop, where all were encouraged to attempt ...

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We’ve just had British Pie Week - a glorious celebration of shortcrust and gravy - but today we’re swapping the pastry for the most famous constant in the universe. Did you know with a Digital ...

This year people in Scientific American’s New York office brought in pies ahead of Pi Day, but we know there must be stranger and more interesting ways to celebrate the iconic number. How have you or ...