Giant Human-Powered Helicopter Flies as Young Engineers Meet “Impossible” Challenge

3 noviembre 2014

A human-powered helicopter could not fly, experts concluded. Then two young engineers proved them wrong and won a quarter of a million dollars in the process

— Read more on ScientificAmerican.com


http://rss.sciam.com/~r/sciam/physics/~3/TV5V0Xk6NyE/

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