n would be
overwhelming in favour of that theory which could solve the ten
problems. So that, if in addition to the satisfactory explanation of the
physical cause of Gravitation, some, if not all of the other problems
can be solved, as I premise they can, by the same conception of the
Universal Aether, then it follows our third rule of Philosophy will be
more than fulfilled, and the theory so advanced will be placed upon such
a strong foundation, that it can only be overthrown by proving that it
contradicts the results of some undiscovered phenomena.
ART. 7. _Application of Rules to Gravitation._--Let us therefore apply
Newton's own Rules of Philosophy to the Law of Gravitation, and
endeavour to find out if the law, as at present understood, fully
satisfies his own Rules of Philosophy. No one can reasonably object to
subjecting the Law of Gravitation to the test of those principles which
he lays down as the fundamental Rules of Philosophy.
If it comes through the ordeal with complete success, that is, if it is
essentially simple in its conception and development, and if all its
details are fully in accord with experience, as revealed by observation
and experiment, then there will be no need to alter any of its
hypotheses or axioms. If, on the other hand, it violates any of the
rules as laid down by Newton, then, to that extent, an alteration will
be necessary, in order that the Law of Gravitation may be brought into
conformity with his own rules, and our Philosophy made to agree with our
experience and observation.
ART. 8. _Analysis of Law of Gravitation._--In order to accomplish this,
let us ask ourselves, "What are the component parts of this Law of
Gravitation?" The Law is not a simple law, but a compound one. It is
compounded primarily of three parts.
1st. A Primitive Impulse.
2nd. A Centripetal Force.
3rd. A Centrifugal Force.
To these must be added the three Laws of Motion; although they are not
directly part of the Law of Gravitation, yet they are essential to its
effectiveness and completion. Without any one of these, the Law of
Gravitation would fail to account for all the phenomena that it does
account for.
If there were no Primitive Impulse, then the planets and meteors, sun
and stars would for ever remain at rest, and the Laws of Motion would
remain inoperative. If there were no Centripetal Force, then the
Centrifugal Force would hurl the planets and comets, asteroids or min
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