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Pedal-powered plane takes to skies
A human-powered 'ornithopter' with flapping wings has become the first aircraft of its kind to achieve sustained flight. (www.tgdaily.com) 更多...
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This page has a video of the flight: http://www.avweb.com/avwebflash/exclusivevids/HumanPoweredOrnithopterFlight_203330-1.html
Kind of comical looking, but an accomplishment nonetheless.
Kind of comical looking, but an accomplishment nonetheless.
Kind of comical looking, but an accomplishment nonetheless.