Times may change on a dime in our tumultuous world, but one thing always remains the same: pi, the irrational-mathematical ...
(Gayle Laird/Exploratorium) Details: Event takes place noon-5 p.m. March 14 at Pier 15 (Embarcadero at Green St,), San Francisco; $40 daytime tickets, exploratorium.edu/pi Originally Published ...
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