From these facts it may be seen that the sun has a temperature far exceeding any temperature that can be produced on the earth by artificial means. All known elements would be transformed into a vaporous condition if brought close to the sun's surface. It may readily be seen, therefore, that the sun is constantly sending forth an incessant flood of radiant heat in all directions, and on every side into space. Now if heat be motion, and be primarily due to the vibratory motion of Aether, what must be the volume and the intensity of the aetherial waves, known as heat waves, generated by the sun? When we remember its ponderous mass, with its volume more than 1,200,000 times that of our earth, its huge girth of more than 2-1/2 millions of miles, and this always aglow with fire the most extensive known--fires so intense that they cover its huge form with a quivering fringe of flames which leap into space a distance of 80,000 miles, or even 100,000 miles, or over one-third of the distance of the moon from the earth,--remembering all these facts, what must be the volume and intensity of the aetherial heat waves which they generate and send upon their course into space on all sides! What a very storm of energy and power must there be in this aetherial atmosphere which exists around the sun's huge form, and with what volume of power must the aetherial heat waves speed away from so great a generating source! Some idea as to their velocity of motion may be gained by the fact, that these aetherial heat waves traverse the distance of 92,000,000 miles between the sun and our earth in the short space of 8-1/2 minutes. With such a velocity of motion as that, and with the fact before us that all motion is a source of energy or power, what must be the energy possessed by these heat waves! There must, therefore, be a power in these aetherial heat waves which is strictly proportionate to their intensity and flow. So that, whenever they come into contact with any body, as a planet, as they flow outwards from the sun, they must exert a power upon such a planet which is directed _away_ from the sun, and therefore act upon that planet by the energy of their motion away from the sun, the source of the aetherial heat waves. Therefore, not only in the atomic world is heat a repulsive motion, but equally in the solar world, which is but an atomic world on a large scale, the same principle prevails, and the effect of radiant heat is essentially a repulsive, that is, a centrifugal motion, as it is always directed from the central body, the sun.