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  2. Centrifugal force - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_force

    Even in calculations requiring high precision, the centrifugal force is generally not explicitly included, but rather lumped in with the gravitational force: the strength and direction of the local "gravity" at any point on the Earth's surface is actually a combination of gravitational and centrifugal forces. However, the fictitious forces can ...

  3. Artificial gravity - Wikipedia

    en.wikipedia.org/wiki/Artificial_gravity

    From the perspective of people rotating with the habitat, artificial gravity by rotation behaves similarly to normal gravity but with the following differences, which can be mitigated by increasing the radius of a space station. Centrifugal force varies with distance: Unlike real gravity, the apparent force felt by observers in the habitat ...

  4. Mechanical explanations of gravitation - Wikipedia

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

    Due to centrifugal force, matter tends towards the outer edges of the vortex, which causes a condensation of this matter there. The rough matter cannot follow this movement due to its greater inertia —so due to the pressure of the condensed outer matter those parts will be pushed into the center of the vortex.

  5. Absolute rotation - Wikipedia

    en.wikipedia.org/wiki/Absolute_rotation

    One is the effects of centrifugal force upon the shape of the surface of water rotating in a bucket, equivalent to the phenomenon of rotational gravity used in proposals for human spaceflight. The second is the effect of centrifugal force upon the tension in a string joining two spheres rotating about their center of mass.

  6. Spacecraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_flight_dynamics

    A space vehicle's flight is determined by application of Newton's second law of motion: =, where F is the vector sum of all forces exerted on the vehicle, m is its current mass, and a is the acceleration vector, the instantaneous rate of change of velocity (v), which in turn is the instantaneous rate of change of displacement.

  7. History of centrifugal and centripetal forces - Wikipedia

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

    He coined the phrase "compound centrifugal force" for a term which bore a similar mathematical expression to that of centrifugal force, albeit that it was multiplied by a factor of two. [14] The force in question was perpendicular to both the velocity of an object relative to a rotating frame of reference and the axis of rotation of the frame.

  8. Mach's principle - Wikipedia

    en.wikipedia.org/wiki/Mach's_principle

    This experiment demonstrates that the centrifugal forces arise only when the water is in rotation with respect to the absolute space (represented here by the earth's reference frame, or better, the distant stars) instead, when the bucket was rotating with respect to the water no centrifugal forces were produced, this indicating that the latter ...

  9. Photon sphere - Wikipedia

    en.wikipedia.org/wiki/Photon_sphere

    Centrifugal force falls to zero at the photon sphere, including non-freefall orbits at any speed, i.e. an object weighs the same no matter how fast it orbits, and becomes negative inside it. Inside the photon sphere, faster orbiting leads to greater weight or inward force. This has serious ramifications for the fluid dynamics of inward fluid flow.