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  2. Centripetal force - Wikipedia

    en.wikipedia.org/wiki/Centripetal_force

    A centripetal force (from Latin centrum, "center" and petere, "to seek" [1]) is a force that makes a body follow a curved path.The direction of the centripetal force is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

  3. History of centrifugal and centripetal forces - Wikipedia

    en.wikipedia.org/wiki/History_of_centrifugal_and...

    Since the centrifugal force of the parts of the earth, arising from the earth's diurnal motion, which is to the force of gravity as 1 to 289, raises the waters under the equator to a height exceeding that under the poles by 85472 Paris feet, as above, in Prop. XIX., the force of the sun, which we have now shewed to be to the force of gravity as ...

  4. Coriolis force - Wikipedia

    en.wikipedia.org/wiki/Coriolis_force

    The forces at play in the case of a curved surface. Red: gravity Green: the normal force Blue: the net resultant centripetal force. To demonstrate the Coriolis effect, a parabolic turntable can be used. On a flat turntable, the inertia of a co-rotating object forces it off the edge.

  5. Fictitious force - Wikipedia

    en.wikipedia.org/wiki/Fictitious_force

    A fictitious force is a force that appears to act on a mass whose motion is described using a non-inertial frame of reference, such as a linearly accelerating or rotating reference frame. [1] Fictitious forces are invoked to maintain the validity and thus use of Newton's second law of motion, in frames of reference which are not inertial. [2]

  6. Eötvös effect - Wikipedia

    en.wikipedia.org/wiki/Eötvös_effect

    The force of gravity and the normal force. The resultant force acts as the required centripetal force. The mathematical derivation for the Eötvös effect for motion along the Equator explains the factor 2 in the first term of the Eötvös correction formula. What remains to be explained is the cosine factor.

  7. Reactive centrifugal force - Wikipedia

    en.wikipedia.org/wiki/Reactive_centrifugal_force

    Reactive centrifugal force, being one-half of the reaction pair together with centripetal force, is a concept which applies in any reference frame. This distinguishes it from the inertial or fictitious centrifugal force, which appears only in rotating frames.

  8. New Evidence Ties World Bank to Human Rights Abuses in Ethiopia

    projects.huffingtonpost.com/projects/worldbank...

    The bank denied that resettlement was being imposed by force or that World Bank money had been used to support forced relocations. The bank said its investments in Ethiopia had helped slash child mortality in half and increase primary school enrollment by 13 percent in less than a decade.

  9. Mechanical explanations of gravitation - Wikipedia

    en.wikipedia.org/wiki/Mechanical_explanations_of...

    So also in his model the fine matter presses the rough matter into the center of the vortex. Huygens also found out that the centrifugal force is equal to the force that acts in the direction of the center of the vortex (centripetal force). He also posited that bodies must consist mostly of empty space so that the aether can penetrate the ...