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  • Bikes have a harder time turning around than pedestrians, especially on a narrow path. Scientists say the same principle — binding the direction of motion to angular momentum — can keep electrons moving powerfully enough to overcome material imperfections, or bumps in the road.
    Bikes have a harder time turning around than pedestrians, especially on a narrow path. Scientists say the same principle — binding the direction of motion to angular momentum — can keep electrons moving powerfully enough to overcome material imperfections, or bumps in the road. "XCBikeRacer" by Daniel Plunkett. Licensed under CC BY-SA 3.0 via Commons.
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