设想有一种体积极微的机器人,它能进入人体血管系统诊治心脏疾患。不过到目前为止,这还是一种科学幻想。但目前世界上某些实验室的科学家正在设计和建造这样的装置,有朝一日,这个幻想将会成为现实。这些正在设计试制过程中的齿轮、涡轮机和发动机体积极小,60000个这样的发动机放在一起才1平方英寸。这些装置正在导致一场新的技术革命:微机器 Imagine a tiny robot that can enter the human vasculature to diagnose and treat heart problems. But so far, this is a science fantasy. But scientists in some of the world’s labs are currently designing and building such devices, and one day the fantasy will come true. The gears, turbines and engines being designed and prototyped are very small and 60,000 of these engines are only 1 square inch together. These devices are leading to a new technological revolution: micro-machines