What type of flight did Otto Lilienthal help to make a reality?
"Faster than light"
"Unpowered gliding"
"Heavier than air"
"Lighter than air"
Answer
Otto Lilienthal was a German engineer and aviation pioneer who helped make heavier-than-air flight a reality. He was one of the first people to make controlled, sustained flights in gliders. His work helped to pave the way for the development of heavier-than-air aircraft, such as airplanes.
Flight of the Eagle: Testing Your Knowledge on Otto Lilienthal, the German Aviation Pioneer