One of the most amazing results in the history of mathematics, Michael Freedman’s proof of the four-dimensional Poincaré conjecture, was known by a few people and inaccessible to everyone else. Until now. https://t.co/h7eGWWi5ce (via @QuantaMagazine)
Via @NobelPrize: Remembering a pioneer of high-energy physics: Arthur Holly Compton. He received the 1927 Physics Prize for the Compton effect, an increase in wavelength of X-rays that occurs when they are scattered by electrons.