Scientists create robots smaller than a grain of salt that can think

Scientists have engineered minuscule robots, nearly invisible to the naked eye, that possess the intelligence to perceive their surroundings, make decisions, and navigate independently. These tiny machines harness light energy and incorporate miniature computing systems, propelling themselves by altering electric fields instead of relying on mechanical components. They are capable of sensing variations in temperature, adhering to predetermined routes, and collaborating collectively in swarms. This innovation represents a pioneering achievement in developing fully autonomous robots at an ultra-small scale.