German aeronautical engineer Otto Lillenthal with his pioneering glider aircraft, which was based on his observations of bird flight, 1894.
German aeronautical engineer Otto Lillenthal with his pioneering glider aircraft, which was based on his observations of bird flight, 1894.
German aeronautical engineer Otto Lillenthal with one of his pioneering glider aircraft based on observation of bird...
Me: I hope this worked! Do you think it worked? I want one! I want ice cream. … WE CAN’T ALWAYS GET WHAT WE WANT.