To build a “hand” for a robot apple picker, Joe Davidson first had to learn how to pick apples. After all, he was an engineer, not a farmer. “Picking apples seems like a very simple thing to do,” ...

The human hand is amazingly complex. With 34 muscles, more than 30 tendons, and 27 bones, hands can grasp objects, express emotion, create works of art, and accomplish many of the tasks that drive ...

Our hands are works of art. A rigid skeleton provides structure. Muscles adjust to different weights. Our skin, embedded with touch, pressure, and temperature sensors, provides immediate feedback on ...