mb by means of an instrument known as
Coulomb's Torsion Balance, and I must refer the reader to any work on
electricity for a full establishment of this law. Suffice to say, that
it has been experimentally demonstrated that the law holds good in
relation to the phenomena of electricity; and, wherever we get the two
kinds of electricity present in any medium or conductor, owing to the
polarization of its particles, there we have this law operating in
relation to the intensity of the repulsions of the two bodies directly
concerned.

We have already learned that the sun is an electrified body, and from
that hypothesis we have arrived at the conclusion that the earth and all
the other planets are electrified bodies. This being so, it naturally
follows that the intensity of the centrifugal force between any two of
these bodies, as the sun and the earth for example, or the sun and
Jupiter, is subject to the law of inverse squares; and that the
repulsion of the sun and the earth for each other is always regulated by
their distance, being inversely as the squares of the distance between
them.

Thus, if the distance between the sun and any planet is reduced to
one-half, which is an exaggerated view, the intensity of the centrifugal
force is increased four times; if the distance be doubled the force is
reduced to four times its former intensity, and so on.

Whatever the distance may be between the sun and any of the planets, if
that distance be increased or decreased, then the intensity of the
centrifugal force due to electric waves is increased or decreased in
accordance with the law of inverse squares. This agrees with the
centripetal law of Gravitation, as the Attraction of Gravitation is also
subject to the same law of inverse squares, and, as we have seen (Art.
83), its path coincides with the path of centrifugal force, as it
pursues the path represented by the straight lines joining the two
bodies.

So that, whenever, and wherever, at any point in space in relation to
the central body, the sun, the intensity of the attractive force is
increased according to the law of inverse squares by the distance from
the central body being diminished, at exactly the same time and in
exactly the same manner, the repulsive force due to aetherial electric
waves is also increased. If the attractive force is doubled, then the
repulsive force is doubled. If the attractive force is halved, the
repulsive force is halved. If the attractive