KentuckyFC writes "A pendulum converts the constant force of gravity into an oscillation — a useful trick by anyone's standards. But nanotechnologists have yet to match it — they just haven't been able to build nano-oscillators. Now arxivblog.com reports that a group at the University of the Madison have made mushroom-shaped nanopillars that oscillate in a constant DC field, like metronomes." Link to Original Source
The only problem with being a man of leisure is that you can never stop
and take a rest.