Weekly links for May 20

How to win at Battleship, in advance of the movie of the same name. Link goes to the non-technical description at Slate; here’s the technical version, by Nick Berry.

How subway networks evolve, from Scientific American.

Given a sack of sugar, an unbalanced scale, and two 5-pound weights, measure exactly 10 pounds of sugar. (H/T Dave Richeson)

Should we get rid of the “=” sign in mathematics?, from Republic of Math.

A mathematical challenge to obesity: the New York Times’ Claudia Dreifus speaks with Carson Chow of Pitt, who has a blog.

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