As the tailwheel lifts during the takeoff run, gyroscopic precession tries to turn the plane left of centerline.
The binary's orbital precession , for example, is quite vigorous.
Even Newtonian physics was unable to give a complete explanation of its orbit: the direction of the axis was found to move by rather more than could be explained by precession and the gravitational attraction of the other planets.
Einstein's theory predicts that such gyroscopes will undergo geodetic precession merely because space-time is curved in the planet's vicinity.
Of course, the anomalous precession of Mercury was already known, and general relativity could explain it.
Due to the precessional movements of both planets the alignment does not repeat precisely.
That is, if some of the Earth's energy were to be diverted into a slightly larger precessional wobble, the rate of spin should slow down slightly as a consequence.
If we take a single spin 1/2 particle, and put it in a magnetic field, the spin precesses .
In earlier talks I have argued that these cataclysmic floods were, in reality, massive changes in sea level brought about by polar instability, or by precessional wobble in the Earth's mode of spin.
Ptolemy understood that the rotation axis of the earth was slowly precessing , or moving in a circle, with an angular radius of 23 1/2 degrees with a period of around 26,000 years.