Kevin Hartnett
@kshartnett
Chief editor @stripe. Formerly math editor @quantamagazine and Brainiac columnist @bostonglobe.
ID: 339847475
21-07-2011 19:13:19
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I chatted with Richard Rusczyk of AoPS (Art of Problem Solving) earlier this year and since then, I'm glad to see they've launched Beast 1, which my second-grade son loves. I also enjoyed this conversation between Richard and Erica Klarreich for Quanta Magazine.