| 21. | In the case of a differentially rotating disk, the shear force can provide an additional stabilizing force.
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| 22. | After separation, centrifugal force due to the rotating disk throws particles against the inner walls of the filter.
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| 23. | The gas, however, contracted, causing the galaxy to rotate faster, until the result was a thin, rotating disk.
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| 24. | This is a three dimensional Riemannian manifold often loosely described as giving the noneuclidean geometry of a rotating disk.
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| 25. | In 1903, Alfred Wehrsen patented an ebonite rotating disk possessing embedded sectors with button contacts at the disk surface.
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| 26. | The rest of the cloud collapses into a rotating disk, in which matter gathers into asteroid-like rocks called planetesimals.
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| 27. | Collisions between streams from this stellar wind creates a shock front, with cooling particles settling toward a co-rotating disk.
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| 28. | Synchronisation around the circumference of a rotating disk gives a non vanishing time difference that depends on the direction used.
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| 29. | Optical storage systems work by reflecting beams of laser light off of a rotating disk with a minutely pitted surface.
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| 30. | There, a half-century ago, IBM began research that would lead to the first rotating disk system for storing computer data.
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