Such tiny engines could be designed to gauge voltage changes in neurons and could deployed directly into the brain to perform the job. (kavlifoundation.org)
Nissan found the faked mileage tests because of a discrepancy with its own tests on Mitsubishi - manufactured minicar models with tiny engines that had been sold under the Nissan brand. (sandiegouniontribune.com)
Beetles can skate across water by decreasing the surface tension - now tiny engines made from droplets, nanopowder and laser light are using the same trick (newscientist.com)