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.
Leonardo was not only a master artist, but also an accomplished military engineer.
Leonardo also designed a wide variety of artillery weapons.
The design for the armoured car features the most important military requirements: reliability, portability and great firepower.
Leonardo's creative legacy also includes several projects related to bridges. This unusual swing bridge allowed for undisturbed water traffic.
Som en milepæl i flyhistorien gjorde Oszkár Asbóths første helikopter sin første flyvning i 1928.
Kamphelikopteret Apache, som er oppkalt etter en amerikansk indianerstamme, ble utviklet for den amerikanske hæren.
Det kanadiske helikopteret er et av verdens mest brukte helikoptre.