#aprile reggio emilia

Riparte il tour di presentazione del romanzo La Parola Amore Uccide (Rizzoli 2022) del dinamico duo Jadel Andreetto & Guglielmo Pispisa. > 8 aprile 2022 Reggio Emilia, Arci Fenulli, via Fenu…

How many distinct knots have exactly 10 crossings? By the late 20th century, mathematicians believed the number to be 166. Then, in 1973, New York attorney and part-time mathematician Kenneth A. Perko Jr. discovered that two of these were essentially

Futility Closet is a collection of entertaining curiosities in history, literature, language, art, philosophy, and mathematics, designed to help you waste time as enjoyably as possible.