A Parisian restaurant once promised a pizza experience unlike any other. Order your pizza and, within five minutes, a robot would craft your pie from scratch, no human hands required. This was the ...

It’s a bizarre sight: With a short burst of light, a sponge-shaped robot scoots across a tiled surface. Flipped on its back, it repeatedly twitches as if doing sit-ups. By tinkering with the light’s ...