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Magnus effect
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{{Short description|Deflection in the path of a spinning object moving through a fluid}} {{Classical mechanics}} {{Continuum mechanics}} {{Use dmy dates|date=April 2021}} The '''Magnus effect''' is a phenomenon that occurs when a [[spin (geometry)|spinning]] [[Object (physics)|object]] is moving through a [[fluid]]. A [[lift (force)|lift force]] acts on the spinning object and its path may be deflected in a manner not present when it is not spinning. The strength and direction of the Magnus force is dependent on the speed and direction of the rotation of the object.<ref name=Halliday /> The Magnus effect is named after [[Heinrich Gustav Magnus]], the German physicist who investigated it. The force on a rotating cylinder is an example of [[Kutta–Joukowski theorem|Kutta–Joukowski]] lift,<ref name="Glenn" /> named after [[Martin Kutta]] and [[Nikolay Zhukovsky (scientist)|Nikolay Zhukovsky]] (or Joukowski), mathematicians who contributed to the knowledge of how lift is generated in a fluid flow.<ref>Anderson, John D. (1984) ''Fundamentals of Aerodynamics'', sections 3.15 and 3.16. McGraw-Hill ISBN 0-07-001656-9</ref>
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