文艺复兴时期的达·芬奇不单预测了音速飞机的三角形状,更于1480年自己设计了一架机翼是螺旋面的模型直升机。设计之初,达·芬奇希望“它能像螺丝钉一样……拧到空气中去”。从达·芬奇到莱特兄弟,飞行器研发史就是一部航空模型的发展史——人类无法遨游在天空中,只能通过这些小巧的设计来实现自己的梦想。至于普通人想靠自己上天,更是“痴心妄想”。 Renaissance Leonardo da Vinci not only predicted the triangle shape of the sonic plane, but in 1480 he himself designed a helicopter with helicopter wings. At the beginning of the design, Leonardo da Vinci hoped “It can screw like a screw ... into the air.” From Leonardo da Vinci to the Wright brothers, the history of aircraft research and development is a history of the development of aeronautical models - humans can not travel in the sky and can only realize their dreams through these compact designs. As for ordinary people want to rely on their own God, but also “wishful thinking ”.