The latest revolutionary robot isn’t the metallic, costly machine you’d expect: It’s squishy like Silly Putty, wireless, battery-less and made for pennies by a 3D printer.

Meet Octobot. It looks like a tiny octopus and is designed to mimic that slithery creature to get through cracks and tight places, making it ideal as a rescue robot.

A team at Harvard University has created a robot - actually about 300 of them, since they are so cheap to make - that is opposite of the common view of a robot. Soft, not hard. Flexibl,e not rigid. It’s not mechanical, nor electrical. It’s powered by fluids. The discovery is described, photographed and shown on video in the scientific journal Nature.  Cont'd...