The aerial screws Leonardo da Vinci sketched in the 15th century now power a small drone.
Austin Prete/University of Maryland
In the late 1480s, Leonardo da Vinci sketched out a clever design for a one-person helicopter propelled by an “aerial screw.” You may have seen his drawings and wondered whether one of the choppers could ever take flight.
Now we know the answer. The Italian genius was right.
Starting in 2019, a University of Maryland…
