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Eight-year-old Bitz is a budding inventor bursting with great ideas. Along with energetic little brother Bob, Bitz uses engineering to solve all sorts of problems for her friends.

Baldwinsville, N.Y. -- Ask Bob Bitz what most people misunderstand about turkeys, and he doesn't hesitate. "They aren't dumb," said Bitz, laughing. No, he added. They won't drown themselves standing ...