Scientists build nanomachine

Nearly 150 years ago it was no more than a concept by a visionary scientist, but researchers have now created a minuscule motor that could lead to the creation of microscopic nanomachines.

Scottish physicist James Clerk Maxwell first imagined an atom-size device dubbed Maxwell’s Demon in 1867. Scientists at the University of Edinburgh have made it a reality.

“We have a new motor mechanism for a nanomachine,” said David Leigh, a professor of chemistry at the University.

His mechanism traps molecular-sized particles as they move. As Maxwell had predicted long ago, it does not need energy because it is powered by light.

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