Add Yahoo as a preferred source to see more of our stories on Google. The gear moves when its light-responsive structure is activated. (CREDIT: Gan Wang) Gears have powered the world for millennia, ...

Scientists are exploring DNA-based robots, tiny molecular machines that could one day navigate the body, deliver targeted ...

DNA robots are emerging as tiny programmable machines that could one day deliver drugs, hunt viruses, and build ...

Researchers reveal how bacteria generate torque, enabling them to drive microscopic machines, potentially advancing ...

Bacteria-scale robots that can run for months without human control are no longer a lab fantasy. Researchers have now built fully programmable micro-machines, smaller than a grain of salt, that can ...

As the human race has advanced, we've made the process of creating products extremely efficient. Assembly line factories litter the planet's landscape, mass producing items piece by piece and ...

Gears have powered the world for millennia, from clock machines to car engines. But miniaturizing them to microscopic dimensions has stumped engineers for decades. Anything under one-tenth of a ...