1 март 1485 г. - Ornithopter
Описание:
This was the first form of aerodynamic engineering. It required the user to flap wings like a bird to push themselves up. The was not always effective. It has been known as the first non-motor aerodynamic mechanism.Добавлено на ленту времени:
Дата:
1 март 1485 г.
Сейчас
~ 540 г назад