"Figuring out when humans began to count systematically, with purpose, is not easy. Our first real clues are a handful of curious, carved bones dating from the final few millennia of the three-​million-​year expanse of the Old Stone Age, or Paleolithic era. Those bones are humanity’s first pocket calculators: For the prehistoric humans who carved them, they were mathematical notebooks and counting aids rolled into one"
"Thousands of scientists are cutting back on Twitter, seeding angst and uncertainty" https://www.nature.com/articles/d41586-023-02554-0
Just what part of "easier and more convenient" don't you get ? image
"Mais quelle est l’empreinte carbone des modes de transport actifs et collectifs ainsi que de la micromobilitΓ© Γ©lectrique ? Quels principes permettent de guider la transition vers le transport urbain le plus sobre en carbone possible ?" image
"South America is living one of the (most) extreme events the world has ever seen (...) Unbelievable temperatures up to 38.9C in the Chilean Andine areas in mid winter. Much more than what Southern Europe just had in mid summer at the same elevation: This event is rewriting all climatic books."
"In every reported case where police mistakenly arrested someone using facial recognition, that person has been Black"