车轮这项发明看似简单,以至于人们很容易忘记它是多么重要和富有独创性。这种给圆盘或圆柱装上转轴而形成的简单装置有着非常广泛的用途。它们减小了物体在地面上移动时的摩擦力,大大提高了移动速度—车轮以这种方式影响了人类数千年的发展史。作为整个机械装置的组成部分,车轮和齿轮几乎无处不在:从时钟到蒸汽机, The invention of the wheel seems so simple that it is easy to forget how important and original it is. This simple arrangement of disks or cylinders fitted with shafts has a very wide range of uses. They reduce friction when the object moves on the ground and greatly increase the speed of movement - in this way, the wheel influences the history of thousands of years of human development. As part of the entire mechanism, wheels and gears are almost ubiquitous: from clock to steam engine,