"An elongated uniform body, e.g., a dressed lath of pine, has three primary centers - the center of gravity, the center of oscillation, and the center of velocity. The center of gravity is the center of the body; the center of oscillation is two-thirds from the end as the point of suspension; the center of velocity is at two-thirds of one-third from the end; i.e., at two-ninths from the end as the point of suspension.
"This elongated body suspended at the end, or at one-third from the end, the oscillations are the same. The one-third above the point of suspension so balances the two-thirds below that the oscillations are performed in the same time for both suspensions. When it is suspended at two-thirds of the one-third. i.e., one-ninth of the whole length above the center of oscillation, one-ninth above balances two-ninths below; the oscillating part is thus, as it were, one-ninth shorter than at the center of oscillation, and gives rise to the center of velocity." [Scientific Basis and Build of Music, page 92-93]
"The same thing may be said as to the force of repulsion, or the centrifugal force, changing to one of gravitation. So that, since the centripetal and centrifugal forces, with relation to the center of force, are continuously undergoing a change, or interchange, the one for and into the other, they can, together, be but modifications of one and the same force, of which the center of force is the key or germ." Walter Russell, Atomic Suicide?
A Neutral Center then is like a fulcrum under a seesaw or the point of suspension of a pendulum. On one side are the incoming concordant forces spiraling toward the center and the other side are discordant forces spiraling away from the center. These two seemingly opposing forces are actually the same force but in a different condition of Harmony (sympathy) or discord. The center then is the point of maximum polarization under high polar tension (energized neutrality or full pontentiality or charged). The furthest reaches of the center are the zone or realm of least polarization or depolar neutralization or discharged state. The Outreach of the center is determined by its sympathetic strength or power and the sympatheticity of the surrounding medium. This reach or field Keely called sympathetic outreach and extends over the domain of the Neutral Center over which it is ruler and prime director. This Outreach may be a solar system, a molecule or the human body. Extending this concept to the human Mind we could see there is naught the human Mind does not have dominion.....
"The same thing may be said as to the force of repulsion, or the centrifugal force, changing to one of gravitation. So that, since the centripetal and centrifugal forces, with relation to the center of force, are continuously undergoing a change, or interchange, the one for and into the other, they can, together, be but modifications of one and the same force, of which the center of force is the key or germ". Skinner, John Ralston; An Essay Upon Force and its Effect Upon Matter
See Also