The purpose of the looking at the future...is to disturb the present!

Gaston Berger (1896-1960), francuski futurolog

This Autonomous Aquatic Robot Is Smaller Than a Grain of Salt

Researchers have succeeded in developing the smallest fully autonomous robot in history. It measures less than 1 millimeter and can swim underwater for months powered only by light.
Link :
https://www.wired.com/story/autonomous-aquatic-robot-smaller-than-a-grain-of-salt/