om a
central body due to the wave motions of the Aether termed Heat.

May we not find in the repulsive power of heat in the atomic world, an
indication of that very power for which we are seeking in the solar
system--that is, a Centrifugal Force or motion which is the exact
opposite of the Centripetal Force or attractive power of Gravitation?
For if heat be a repulsive motion at all, then to be strictly logical it
must be equally repulsive in relation to large masses, the sun and the
planets for example, as it is in the atomic world, otherwise we have a
phenomenon in Nature which contradicts itself, which assumption would be
contrary to the simplicity which is to govern our philosophy, and also
contradictory to experience, which is the primary factor of
philosophical reasoning. Now what are the facts with reference to the
sun, which is the central body of our solar system, and the source of
all light and heat in that system? We will look at this aspect of the
question under the heading of Radiant Heat.

[Footnote 11: _Heat, a Mode of Motion._]

ART. 64. _Radiant Heat._--The source of all light and heat, not only of
our earth, but also of all the other planets, is to be found in the sun.
We have therefore to deal, not with an atom which is generating heat
waves on every side, but with a globe about 860,000 miles in diameter,
and with a circumference of over 2,700,000 miles. This huge orb consists
of a central body, molten or partly solid, with a temperature so hot
that it is almost impossible to conceive its intensity. The quantity of
heat emitted by the sun has been ascertained by Sir John Herschel from
experiments made at the Cape of Good Hope, and by M. Pouillet in Paris.

Sir John Herschel found that the heating power of the sun when it was
directly overhead was capable of melting .00754 of an inch of ice per
minute. According to M. Pouillet the quantity was .00703 of an inch,
which is equal to about half-an-inch per hour. From these results it has
been calculated that if the direct heat of the sun were received upon a
block of ice one mile square, 26,000 tons would be melted per hour by
the heat which would be absorbed. Again, as Herschel[12] puts it:
"Supposing a cylinder of ice, 45 miles in diameter, to be continually
darted into the sun with the velocity of light, the heat given off
constantly from the sun by radiation would be wholly expended in
liquefaction on the one hand, while on the other, the actual t