An artificial spin ice array exploits two-dimensional chirality to take a step towards technology. The functionality of the micromagnetic array may be understood by analogy with a mechanical ratchet ...
Designing machines that can be driven by thermal noise is a dream for scientists. In 1912, Smoluchowski presented a gedankenexperiment consisting of an asymmetric ratchet with a pawl that could ...
Aug. 1, 2008, Elgin, IL -- Finally, you can get a mechanics' grade, isolated wrench that holds up to the rigors of a lineman's demands. This 9/16"-3/4" precision machined wrench holds up better than ...
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