Linkage

• Reuleaux triangle, now a Wikipedia "good article"

• Triangle centers from curve shortening (MathOverflow question still missing a complete solution, but a lot of interesting partial results and discussion; G+)

• Rumors of Babai's graph isomorphism result

• Balancing understandability and pedantry in popular scitech writing

• A dubious similarity network of novelists, displaying the phenomenon that nearest-neghbor links are not bidirectional (G+)

• Southern California Theory Day, now past

• Advice from Valerie Barr on being a good feminist ally

• Reductio ad absurdum of "show your thinking" style math problems

• Petition to the EU to protest using gold-model open access as an excuse to redirect funding from researchers to publiishers (G+)

• Unification of random-walk and interior-point convex optimization (G+)

• Mathematical street art (G+)

• Can planets have corkscrew orbits? Greg Egan takes down an incautious 3-body analysis (G+)

• More women in science doesn't mean less sexism: the example of Argentinian astronomy

• The planted clique problem, part of a growing trend of interest in quasipolynomial time algorithmics

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