Man flies in the air by means of a power pack on his back.
Washington, United States of America USA.
Documentation on file.
VS. At an exhibition of early ideas on flying by man including suggestions from Leonardo da Vinci back in 1400-1500. VS. In Washington's Monument Park a man with a power device on his back. Show the crowds watching how he can fly through the air as he pleases by means of the power pack on his back.