Launch a Tennis Ball Contest
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JPL Invention Challenge 2006   1 2 3 4 5 6 7 8
Little Einsteins launch tennis balls 'Little Einsteins'
In this year's Invention Challenge, students created devices designed to launch 20 tennis balls into a metal trash can located five meters away. The Little Einsteins from Olliever Middle School in Bakersfield launch their tennis balls over a barrier between the launch site and the target.
  Jet Propulsion Laboratory
   California Institute of Technology