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- https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Celestial_Mechanics_(Tatum)/06%3A_The_Celestial_Sphere/6.08%3A_NutationEarth’s axis of rotation nutates because it is subject to varying torques from Sun and Moon – the former varying because of the eccentricity of Earth’s orbit, and the latter because of both the eccent...Earth’s axis of rotation nutates because it is subject to varying torques from Sun and Moon – the former varying because of the eccentricity of Earth’s orbit, and the latter because of both the eccentricity and inclination of the Moon’s orbit. This means that the equinox does not move at uniform speed along the ecliptic, and the obliquity of the ecliptic varies quasi-periodically. These two effects are known as the nutation in longitude and the nutation in the obliquity.
- https://phys.libretexts.org/Bookshelves/University_Physics/Mechanics_and_Relativity_(Idema)/05%3A_Rotational_Motion_Torque_and_Angular_Momentum/5.09%3A_Precession_and_NutationThe action of a torque causes a change in angular momentum, as expressed by Equation 5.7.1. A special case arises when the torque is perpendicular to the angular momentum: in that case the change affe...The action of a torque causes a change in angular momentum, as expressed by Equation 5.7.1. A special case arises when the torque is perpendicular to the angular momentum: in that case the change affects only the direction of the angular momentum vector, not its magnitude.
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Graduate_Classical_Mechanics_(Fowler)/27%3A_Euler_Angles/27.04%3A_Motion_of_Symmetrical_Top_around_a_Fixed_Base_with_Gravity_-_NutationThe range of motion in θ is given by E′>Veff(θ). For L3≠LZ,Veff(θ) goes to infinity at θ=0,π It has a single m...The range of motion in θ is given by E′>Veff(θ). For L3≠LZ,Veff(θ) goes to infinity at θ=0,π It has a single minimum between these points. (This isn’t completely obvious—one way to see it is to change variable to u=cosθ, following Goldstein.
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Classical_Mechanics_(Tatum)/04%3A_Rigid_Body_Rotation/4.10%3A_The_TopWe have classified solid bodies technically as symmetric, asymmetric, spherical and linear tops, according to the relative sizes of their principal moments of inertia.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/General_Physics_I%3A_Classical_Mechanics/55%3A__Earth_Rotation/55.02%3A_NutationIt is a complex motion composed of the superposition of several different harmonic motions, the largest of which has a period of about 18.6 years. It is generally perpendicular to the precessional dir...It is a complex motion composed of the superposition of several different harmonic motions, the largest of which has a period of about 18.6 years. It is generally perpendicular to the precessional direction, so that it is a kind of "nodding" up and down of the Earth's axis (see Figure \PageIndex1). This figure shows the general shape of the nutation, with a period of about 18.6 years; the actual motion, when seen in detail, is more complex. (Credit: CGNUFDL, Wikimedia Commons.)
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Classical_Mechanics_(Tatum)/19%3A_The_Cycloid/19.10%3A_Examples_of_Cycloidal_Motion_in_PhysicsSeveral examples of cycloidal motion in physics come to mind.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/General_Physics_I%3A_Classical_Mechanics/49%3A_The_Gyroscope/49.02%3A_NutationBut in general, the tip of the gyroscope axis will tend to "overshoot" the nominal plane of precession, causing the gyroscope to momentarily dip below this plane before moving back upwards. The result...But in general, the tip of the gyroscope axis will tend to "overshoot" the nominal plane of precession, causing the gyroscope to momentarily dip below this plane before moving back upwards. The resulting motion, called nutation, is a kind of 'nodding' of the axis up and down, superimposed on the precessional motion. The actual motion of the gyroscope axis will be a cycloid superimposed on the circular precessional circle.