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  2. Feynman sprinkler - Wikipedia

    en.wikipedia.org/wiki/Feynman_sprinkler

    A Feynman sprinkler, also referred to as a Feynman inverse sprinkler or reverse sprinkler, is a sprinkler-like device which is submerged in a tank and made to suck in the surrounding fluid. The question of how such a device would turn was the subject of an intense and remarkably long-lived debate.

  3. Talk:Feynman sprinkler - Wikipedia

    en.wikipedia.org/wiki/Talk:Feynman_sprinkler

    The University of Maryland has put up videos that show that the inverse sprinkler does in fact rotate quite fast (I assume that the flow rates were the same blowing and sucking). On a related page [2] , they mention that the question after the expected behaviour of the inverse sprinkler has been answered contradictory in the physics literature.

  4. Center-pivot irrigation - Wikipedia

    en.wikipedia.org/wiki/Center-pivot_irrigation

    A satellite image of circular fields characteristic of center pivot irrigation, Kansas Farmland with circular pivot irrigation. Center-pivot irrigation (sometimes called central pivot irrigation), also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.

  5. Impact sprinkler - Wikipedia

    en.wikipedia.org/wiki/Impact_sprinkler

    An impact sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use.

  6. Kinetic bombardment - Wikipedia

    en.wikipedia.org/wiki/Kinetic_bombardment

    The orbital kinetic bombardment system is used first to destroy the Soviet tank armies that have invaded Europe and then to take out Soviet ICBM silos prior to a nuclear strike. [ 30 ] In Nemesis Games (2015) by James S.A. Corey , kinetic orbital bombardment is depicted through the repurposing of civilian asteroid mining technology, where ...

  7. Angular momentum of light - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum_of_light

    The total angular momentum of light consists of two components, both of which act in a different way on a massive colloidal particle inserted into the beam. The spin component causes the particle to spin around its axis, while the other component, known as orbital angular momentum (OAM), causes the particle to rotate around the axis of the beam.

  8. Nodal precession - Wikipedia

    en.wikipedia.org/wiki/Nodal_precession

    The rate of precession depends on the inclination of the orbital plane to the equatorial plane, as well as the orbital eccentricity. For a satellite in a prograde orbit around Earth, the precession is westward (nodal regression), that is, the node and satellite move in opposite directions. [1] A good approximation of the precession rate is

  9. Rotation around a fixed axis - Wikipedia

    en.wikipedia.org/wiki/Rotation_around_a_fixed_axis

    Rotation around a fixed axis or axial rotation is a special case of rotational motion around an axis of rotation fixed, stationary, or static in three-dimensional space.This type of motion excludes the possibility of the instantaneous axis of rotation changing its orientation and cannot describe such phenomena as wobbling or precession.