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July 13, Wednesday, 1 p.m. — Origami artist Robert J. Lang of Alamo, Calif., will give this year’s MathFest talk on “From Flapping Birds to Space Telescopes: The Modern Science of Origami.” This free ...

Origami is the ancient Japanese art of paper folding. One uncut square of paper can, in the hands of an origami artist, be folded into a bird, a frog, a sailboat, or a Japanese samurai helmet beetle.

On a crisp, brilliant, autumn afternoon, when the thoughts of so many of their brethren turned to football, the three brawny men sat at a table, their brows furrowed in concentration, trying to turn a ...