Engineers Used Leonardo Da Vinci's 500-Year-Old Sketches to Build a Drone ... and It Worked!

Italian genius and renaissance icon Leonardo da Vinci in 1483 made one of the earliest drawings of a rotor-driven aircraft propelled by an "aerial-screw" or "air gyroscope". The Italian was a painter, an engineer, and a scientist, among many things. The Mona Lisa and The Last Supper are among his masterpieces.