The Exploratorium
Alex and Olivia met long time friend Mags at the Exploratorium Museum in S.F. for an afternoon of fun. The three really loved the warm water feature and splashed around quite a bit. Then lunchtime and some goofing around with some pics. Olivia is caught in the last picture thinking; possibly about how the distance the balls travel is proportional the square root of the height of the ball on the ramp that calculates square roots.
http://exs.exploratorium.edu/exhibits/gravity-powered-calculator/
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