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Precesión sin momentos externos. Este movimiento ocurre cuando un cuerpo está en movimiento alrededor de un eje que no es ni el de máximo momento de inercia ni el de menor momento de inercia. La precesión puede estar acompañada de otros movimientos propios de los cuerpos en rotación como la nutación.Hay un tipo especial de curvas sobre la superficie del objeto, llamadas polodia [3] [4 ...
Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle , whereas the third Euler angle defines the rotation itself .
Precession of a spinning scientific payload (also known as its "coning"--from "cone"--or its "nutation") is an unwelcome feature, because it complicates the tracking of its instruments. To eliminate it, such satellites use "nutation dampers," small tubes partially filled with mercury.
En astronomía, la precesión de los equinoccios o precesión axial es el cambio lento y gradual en la orientación del eje de rotación de la Tierra, que hace que la posición que indica el eje de la Tierra en la esfera celeste se desplace alrededor del polo de la eclíptica, trazando un cono y recorriendo una circunferencia completa cada 25 ...
Precession, phenomenon associated with the action of a gyroscope or a spinning top and consisting of a comparatively slow rotation of the axis of rotation of a spinning body about a line intersecting the spin axis. The smooth, slow circling of a spinning top is precession, the uneven wobbling is.
Where precession, in terms of the angles used in this section, represents a change in θ θ, nutation is associated with a change in the tilt angle ϕ ϕ. It comes about in several cases, most commonly due to the action of a second force, and often results in a periodic motion (hence the name nutation, ‘nodding’).
12 years ago. Yup, the strength of gravity changes from about 9.78 m/s^2 at the equator to about 9.83 m/s^2 at the poles, mostly because of the spin of the earth and the resulting centrifugal force. Gravity also changes depending on how high up you are: the further you get from the center of mass the lower the gravity.
