“Colour” doesn’t actually exist outside of our brains, so it’s pretty cool to see how other species colour their world. How insects see flowers very differently to us | Mail Online
“In 2000, the Cambridge, Massachusetts-based Clay Mathematics Institute — a nonprofit organization devoted to popularizing mathematical ideas and encouraging their professional exploration — identified seven exceptionally difficult math problems, and offered a million dollars for the solution of each.
One was the Poincaré Conjecture, a classic of topology that was formulated by Henri Poincaré in 1904. No one expected that this particular problem—or any of the six others—would be solved anytime soon, which explains why the mathematics community was thrown for a loop when Russian mathematician Grigory Perelman, 43, posted his proof of the Poincaré Conjecture on the Internet in November 2002.
Even more stunning—except to those familiar with his work—was that his proof turned out to be correct.
In the wake of this feat, Perelman did not behave as one might expect. As Russian journalist Masha Gessen notes in her new biography, “Perfect Rigor: A Genius + the Mathematical Breakthrough of the Century”.
“He did not publish his work in a refereed journal. He did not agree to vet or even review the explications of his proof written by others. He refused job offers from the world’s best universities. He refused to accept the Fields Medal, mathematics’ highest honor.” He even withdrew from the world of mathematics. And if the Clay Institute offers the million dollars that comes with the Millennium Prize, he probably won’t move to collect it.”
Million Dollar Math Problem | Failure Magazine
Raising both awareness and funds, using postcards are the work of Beijing-based Belgian Vanessa De Smet, who spent months documenting the work and daily life of Zheng Xicheng, a 71-year-old preservationist and artist.
Memory lanes | Global Times