The precession of the Earth's axis, known as axial precession or precession of the equinoxes, takes approximately 26,000 years to complete one full cycle. This means that the next completion of this cycle is expected to occur around the year 24,000 AD. However, as precession is a continuous process, it is always ongoing rather than having a specific "next completion" date.
The next precession of the Earth's axis is already in progress and it occurs over a period of about 26,000 years. The exact timing of when one precession cycle ends and another begins is not easily pinpointed.
Precession of the equinox.
The Earth is a spinning top (gyro) with a different moment of inertia about the spin axis than the other two axis. Therefore, it acts like a spinning top with both precession and nutation. Precession of the polar axis (relative to a 'fixed' distant star) forms a cone. The precession period (~26,000years) is the time it takes for the cone to be traced. Nutation occurs normal to the precession cone and has a much faster period (~18.6yrs).
Earth's axis wobbles.
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1- it is amatter of preference 2- considered under gyroscopic precession
A spinning top has a gyroscopic effect that is resistant to changing its axis (falling over). The faster the top, the stronger the gyroscopic effect. As the top begins to slow due to friction, the gyroscopic effect weakens and the top begins to fall.
Abraham A. Ungar has written: 'Beyond the Einstein Addition Law and its Gyroscopic Thomas Precession' -- subject(s): Hyperbolic Geometry, Special relativity (Physics)
Gyroscopic motion refers to the behavior of rotating objects in response to external forces, resulting in a tendency to maintain a constant orientation in space. This phenomenon is governed by the principles of angular momentum and precession. Gyroscopes are commonly used in navigation systems, stabilizing tools, and mechanical devices to maintain balance and orientation.
Precession: The rotor disc tilts in the direction of the force applied, 90 degrees later. Rigidity in Space: The rotor disc stays in a fixed plane as long as the helicopter is spinning.
The plane in which the reactive gyroscipic couple acts is called the gyroscopic plane
The direction of precession of a gyroscope is perpendicular to the axis of rotation.
Precession, which in this case refers to a movement of Earth's axis. A full "turn" takes about 26,000 years.
punda koodi
Elliot J. Siff has written: 'An engineering approach to gyroscopic instruments' -- subject(s): Gyroscopic instruments