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10.15.07
Physics for Pitchers
Why Does a Curveball Curve? What makes a curveball curve and a slider slide? Basic aerodynamics, as manipulated by a skillful pitcher. Three forces act on a spinning baseball as it flies toward the plate: the downward pull of gravity, the slowing drag o
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10.15.07
Hot Wheels
High Tech Wheelchairs for Racers, Athletes...and Dancers? Think a wheelchair can only help a disabled person get down the street? Think again. Engineers, artist and wheelchair users are developing new conveyances that let their riders do everything from
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10.15.07
Ball Busters
The Scientists Who Keep Major League Baseball Honest Back when baseball was young, it was a rare major league batter who had hit more than 50 home runs in a career. Then all of a sudden in the 1990s, the number of heavy homer hitters started going up lik







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