The robot is hard to see without a microscope. It’s small enough to rest on the ridge of a fingerprint and can operate in liquid for months. Inside this speck is a functioning computer, a sensor, and ...

The newest generation of microrobots is so small that a single unit can perch on the ridge of a fingerprint and practically vanish from sight. Built at a scale that rivals grains of salt and human ...

Forbes contributors publish independent expert analyses and insights. Journalist, analyst, author, podcaster. We’ve digitized sight, and we’ve digitized sound. But touch, one of the most important ...