Curious behaviour of spinning coffee cups and other spinning objects
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DOI: 10.1088/1361-6552/ac3ac9
Abstract: If an empty coffee cup is spun on a horizontal surface about a vertical axis in an anti-clockwise direction, then the whole cup rotates slowly backwards, in a clockwise direction, about a vertical axis located… read more here.
Keywords: spinning objects; curious behaviour; spinning coffee; behaviour spinning ... See more keywords
Scattering cancellation technique for acoustic spinning objects
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DOI: 10.1103/physrevb.101.174111
Abstract: The scattering cancellation technique (SCT) has proved to be an effective way to render static objects invisible to electromagnetic and acoustic waves. However, rotating cylindrical or spherical objects possess additional peculiar scattering features that cannot… read more here.
Keywords: spinning objects; scattering cancellation; cancellation technique; technique acoustic ... See more keywords