what is rotation?

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Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
Image result for what is rotation?
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A rotation is a circular movement of an object around a center (or point) of rotation. ... A rotation around a completely external axis, e.g. the planet Earth around the Sun, is called revolving or orbiting, typically when it is produced by gravity, and the ends of the rotation axis can be called the orbital poles.​