touch

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The arm action and body posture determine the speed with which the athlete touches down off the hurdle and his/her sprinting speed between hurdles.
Only about one in five detected funnel clouds actually touches down to become a bona fide tornado.
A UCLA-led group of international scientists and engineers expects to see the first high-definition television pictures from Mars this week when NASA's Mars Polar Lander touches down -- thanks in part to GTE's high speed video transmissions that will race images from NASA's Jet Propulsion Laboratories (JPL) in Pasadena, Calif.