Submarines are going microscopic. Tiny tubes about 10 micrometres lengthy can propel themselves utilizing solely daylight and might be steered by magnetic fields. These microrobots may very well be helpful for cleansing up poisonous waste.
Most swimming microrobots can solely transfer in two dimensions – relying on their weight, they both sink to the underside of a liquid or float near the floor as they swim round. Martin Pumera
on the College of Chemistry and Expertise within the Czech Republic, and his colleagues constructed a microrobot that …