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The basis for measuring gyromagnetic ratios is the relation between the spin precession frequency ''ω'' of the object (the [[Larmor frequency]]) and the [[ma

...ation axis of the Earth. Unfortunately, the axis wanders around a bit (not precession, which takes place on a time scale of thousands of years, but the Chandler

...the star Orion in the sky—Orion is in the constellation Scorpious—then the precession of the equinox would have positioned the Earth beneath Orion in October 3,0 ...odels to explain astronomical motions. He is credited with discovering the precession of the equinoxes and his work in mathematics was significant. Besides his w

..., the rotating blades act like a [[gyroscope]]. As it pivots, [[gyroscopic precession]] tries to twist the turbine into a forward or backward somersault. For eac

* [[Precession]]

...onomer)|Hipparchus (190 BCE - 120 BCE)]], when determining a value for the precession of the Earth over 2100 years ago, and 1000 years before Al-Batani.

...ma with contrast-enhanced three-dimensional fast imaging with steady-state precession magnetic resonance angiography: comparison with intraarterial digital subtr

...Neptune_and_Pluto.html|accessdate=2006-11-08}}</ref> The excess perihelion precession of [[Mercury_(planet)|Mercury]]'s orbit led Le Verrier to postulate the int