Fascinated by nature's solutions to complicated mechanical problems, such as birds' flight,da Vinci envisioned contraptions along the lines of the bat's skeleton. They did not work, but the basic principle behind his parachute or the helicopter is still valid.
对于复杂机械问题达芬奇则通过大自然的解决方法，比如鸟类的飞行原理，他曾经萌生出发明一种类似于蝙蝠骨架的飞行装置。尽管并未成功，但他的降落伞或直升机所涉及的基本原理至今仍具有重要意义。
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