From 1485 to 1490 , leonardo produced a studies on loads of subjects , including nature , flying machines , geometry , mechanics , municipal construction , canals and architecture ( designing everything from churches to fortresses ) 自一四八五至一四九零年间,达文西吸收了相当大量的知识,包含自然、飞行机器、几何学、机械学、营建、挖筑渠道和建筑学(从教堂到碉堡、各式各样的设计) 。
There are now hundreds of models under development , from vast flying wings intended to stay aloft for five years using solar power ( acting more like a satellite than a plane ) to tiny bug - like flying machines that could swarm and interact wirelessly 如今有成百上千的模型正在研发中,范围大到巨型的飞机连,并借助太阳能在高空飞行五年之久(与其说是飞机,那不如说是类似卫星) ,小到微型的类似昆虫的飞行机器,能上天下海且能通过无线联系。