Most of the earth’s wobbling is a grand motion that makes its axis describe a 23° cone once every 26,000 years. This precession is caused by the pull of the sun and the moon acting on the ...

The value of the precession of the spin axis in an external magnetic field required to account for Zeeman effects seemed to lead to doublet separations twice those which are observed. This ...

A crucial role in these changes might come from the orbital motion of our planet ... in the direction of Earth’s rotational axis (precession) were possible culprits, but exactly how they ...

Earth naturally cycles between ice ages and warm periods based on three astronomical cycles: precession (Earth’s wobble), ...