savi writes "The University of Southern California School of Engineering has received a research grant to create swarms of microscopic robots to monitor potentially dangerous microorganisms in the ocean. Basically, nanoscale robots with electrical and mechanical components that can propel themselves, send signals, and do basic computations. "
"Necessity is the mother of invention" is a silly proverb. "Necessity
is the mother of futile dodges" is much nearer the truth.
-- Alfred North Whitehead