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100-year-old thought experiment is possible

1 decade 4 years 4 months 3 weeks ago

...A similar machine was first proposed in 1912 by the Polish physicist Marian Smoluchowski. In his thought experiment, he suggested that tiny moving particles could generate enough force to spin a windmill-type paddle. A locking mechanism such as a pawl could prevent backward motion, forcing the wheel to move in the forward direction only.
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http://www.physorg.com/news195819314.html