Leonardo da Vinci’s inventions - Aerial screw (around 1489)
The polymath thought that if a screw-like structure can rotate fast enough, it will 'drill' into the air and fly.
Aerial screw (around 1489)
One of the most interesting of Leonardo's sketches is the plan of an aerial screw. His plan was to build a structure that rises up in the air when it rotates. He studied the air and stated that it was compressible, therefore it had density; thus if a screw-like structure can rotate fast enough, it will 'drill' into the air and fly.
Leonardo based the design of the flapping wing on birds' wings and a faulty hypothesis.
The aim of this extraordinarily complex study was to mimic the different phases of the flight of birds.
The mechanical wing is one of the masterpieces among Leonardo's sketches related to aviation.
The design for the armored car features the most important military requirements: reliability, portability and great firepower.
Leonardo was not only a master artist, but also an accomplished military engineer.
Leonardo also designed a wide variety of artillery weapons.
Leonardo's creative legacy also includes several projects related to bridges. This unusual swing bridge allowed for undisturbed water traffic.
As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its first flight in 1928.
The Apache attack helicopter, named after an American Indian tribe, was developed for the United States Army.
The Canadian helicopter is one of the most widely used helicopters in the world.