A precessing fan system includes a fan blade connected to a precessing drive train.

The precession force can be used to propel an object.

The portion of the precession due to the combined action of the Sun and the Moon is called lunisolar precession.

The portion of the Precession due to the combined action of the Sun and the Moon is called Lunisolar Precession.

At block (108), the method (100) includes sensing the induced precession of the gyro-stabiliser 106 about its precession axis as the structure (102) oscillates.

This invention relates to a propelling apparatus which utilizes the force generated by precession of a rotary member (1).

Relative to the stars, the elliptical Earth orbit makes a rotation (the precession of the perihelion).

This terrestrial precession, known as precession of the equinoxes, is directly linked to significant climatic changes.

The components of target motion include precession and spin motion.

A substrate precession apparatus for a carrier head is provided.

There is, what is called, the “Precession of the Equinoxes”.

Controlled unidirectional movement of the apparatus based on gyrostatic precession is thereby obtained.

The length of the precessional cycle is variously given because the rate of precession is not constant.

Mars also experiences a precession of the equinoxes, but the precession period is less stable than Earth’s.

periods of rotation and revolution, but as containing the first