wings

  • This Drone’s Feathered Wings Can Open and Close Like a Bird’s

    This Drone’s Feathered Wings Can Open and Close Like a Bird’s

    Aeronautical engineers have built planes that can streak across the sky at over 6,437 km per hour, but still haven’t come close to designing aircraft that can manoeuvre with the astounding agility of a bird. Researchers at Switzerland’s École Polytechnique Fédérale de Lausanne figured, if you can’t beat ‘em, join ‘em, and have designed a…