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nutation    
n. 垂头,下垂,俯下,章动

垂头,下垂,俯下,章动

nutation
n 1: uncontrolled nodding


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  • Nutation - Wikipedia
    Nutation (from Latin nūtātiō 'nodding, swaying') is a rocking, swaying, or nodding motion in the axis of rotation of a largely axially symmetric object, such as a gyroscope, planet, or bullet in flight, or as an intended behaviour of a mechanism
  • Nutation | Definition, Causes, Period, Facts | Britannica
    Nutation, in astronomy, a small irregularity in the precession of the equinoxes Precession is the slow, toplike wobbling of the spinning Earth, with a period of about 25,772 years
  • What Is Nutation? Definition, Causes, and Types - ScienceInsights
    Nutation is a small, rhythmic wobble in the axis of a spinning object You’ll encounter the term most often in astronomy, where it describes a slight nodding motion of Earth’s rotational axis, but it also applies to gyroscopes, spinning tops, and even growing plants
  • 5. 9: Precession and Nutation - Physics LibreTexts
    Due to the action of a second force (with associated torque), the angle between the angular momentum vector and the fixed axis (which we’ll call the z-axis) may also change, a process known as nutation
  • What Is Nutation? A Simple Definition and Explanation
    Nutation is best described as a nodding or swaying motion of a spinning object’s axis of rotation When a body spins, its rotational axis does not always point in a fixed direction; instead, it undergoes a small, periodic oscillation
  • What Is Nutation? The Science of Earth’s Wobble
    Nutation describes an oscillating or nodding motion in the axis of rotation of a spinning object It represents a small, periodic oscillation superimposed upon a larger, more stable rotational movement
  • Nutation - NASA
    Nutation is the short-period oscillations in the motion of the pole of rotation of a freely rotating body that is undergoing torque from external gravitational forces
  • What is nutation? - blog. truegeometry. com
    Nutation is a much smaller, faster oscillation on top of that precession Causes: The primary cause of Earth's nutation is the gravitational pull of the Sun and Moon on Earth's equatorial bulge
  • Nutation _ AcademiaLab
    In the case of the Earth, nutation is the periodic oscillation of the Earth's axis of rotation around its average position on the celestial sphere, due to the external forces of gravitational attraction between the Moon and the Sun with the Earth
  • NUTATION Definition Meaning - Merriam-Webster
    More from Merriam-Webster on nutation Britannica com: Encyclopedia article about nutation Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged





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