Evelyn Lamb on Shinichi Mochizuki’s proof of abc and Piper Harron’s thesis, and how they exemplify opposite ends of a continuum.
Alycia Zimmerman on teaching mathematics to schoolchildren with LEGO.
Andrew McKenzie lists nine paradoxes with a statistical theme.
The best charts of the year from FiveThirtyEight.
Network visualizations of Shakespearean tragedies by Martin Grandjean.
The math-class paradox by Jo Boaler at the Atlantic.
Buy a 3-D printed digital sundial or hear how it works.
In blog posts that I don’t have to write becasue someone else did, Michael Quinn, Philip Keller, and Tyler Barron have all written solutions to FiveThirtyEight’s Riddler #2 (the one about geysers). The “official” solution by Brian Galebach (who proposed the problem) was published along with the next puzzle.
David R. Hagen figures out why the 11th in the month is mentioned less frequently than other days, answering a question from xkcd.
Alex Albright on the demographics of PhD students in the sciences.