The well-timed answer raised my spirits; I thought again that in this man, despite his repulsive shape, I beheld a friend, a brother; suspicion vanished, and my courage rose. He touched the lever, and the craft, subject to his will, nearly rose from the water, and sped with amazing velocity, as was evident from the appearance of the luminous road behind us. So rapid was our flight that the wake of the boat seemed as if made of rigid parallel lines that disappeared in the distance, too quick for the eye to catch the tremor.
Continuing his conversation, my companion informed me that he had now directed the bark toward a point east of the spot where we struck the shore, after crossing the lake, in order that we might continue our journey downward, diagonally to the under surface of the earth crust.
"This recent digression from our journey proper," said he, "has been made to acquaint you with a subject, regarding which you have exhibited a curiosity, and about which you have heretofore been misinformed; now you understand more clearly part of the philosophy of volcanoes and earthquakes. You have yet much to learn in connection with allied phenomena, but this study of the crude exhibition of force-disturbed matter, the manipulation of which is familiar to man under the above names, is an introduction to the more wonderful study destined yet to be a part of your field, an investigation of quiescent matter, and pure motion."
"I can not comprehend you," I replied, "as I stated once before when you referred to what you designated as pure motion."
CHAPTER XXXII.
MATTER IS RETARDED MOTION.
"It is possible—is it not?—for you to imagine a continuous volley of iron balls passing near you in one line, in a horizontal direction, with considerable velocity. Suppose that a pane of glass were to be gradually moved so that a corner of it would be struck by one of the balls; then the entire sheet of glass would be shivered by the concussion, even though the bullet struck but a single spot of glass, the point of contact covering only a small area. Imagine now that the velocity of the volley of bullets be increased a thousand fold; then a plate of glass thrust into their track would be smoothly cut, as though with a file that would gnaw its way without producing a single radiating fracture. A person standing near the volley would now hear a deep purr or growling sound, caused by the friction between the bullets and the air. Increase gradually the rapidity of their motion, and this growl would become more acute, passing from a deep, low murmur, into one less grave, and as the velocity increased, the tone would become sharper, and at last piercingly shrill. Increase now the rapidity of the train of bullets again, and again the notes would decrease in turn, passing back again successively through the several keys that had preceded, and finally would reach the low growl which first struck the ear, and with a further increase of speed silence would ensue, silence evermore, regardless of increasing velocity.[10] From these hundreds of miles in a second at which the volley is now passing, let the rapidity be augmented a thousand times, reaching in their flight into millions of miles each second, and to the eye, from the point where the sound disappeared, as the velocity increased, a dim redness would appear, a glow just perceptible, indicating to the sense of sight, by a continuous line, the track of the moving missiles. To all appearance, the line would be as uniform as an illuminated pencil mark, even though the several integral bullets of the trail might be separated one from another by miles of space. Let a pane of glass now be thrust across their track, and from the point of contact a shower of sparks would fly, and the edges of glass close to either side of the orifice would be shown, on withdrawing the glass, to have been fused. Conceive now that the velocity of the bullets be doubled and trebled, again and again, the line of red light becomes brighter, then brilliant, and finally as the velocity increases, at a certain point pure white results, and to man's sense the trail would now be a continuous something, as solid as a bar of metal if at a white heat, and (even if the bullets were a thousand miles apart) man could not bring proof of their separate existence to his senses. That portion of a pane of glass or other substance, even steel or adamant, which should cross its track now would simply melt away, the portion excised and carried out of that pathway neither showing itself as scintillations, nor as fragments of matter. The solid would instantly liquefy, and would spread itself as a thin film over the surface of each ball of that white, hot mass of fleeing metal, now to all essential conditions as uniform as a bar of iron. Madly increase the velocity to millions upon millions of miles per second, and the heat will disappear gradually as did the sound, while the bright light will pass backward successively through the primary shades of color that are now known to man, beginning with violet, and ending with red, and as the red fades away the train of bullets will disappear to the sense of man. Neither light nor sound now accompanies the volley, neither the human eye nor the human ear can perceive its presence. Drop a pane of glass or any other object edgewise through it, and it gives to the sense of man no evidence; the molecules of the glass separate from in front to close in from behind, and the moving train passes through it as freely as light, leaving the surface of the glass unaffected."
[10] A scientific critic seems to think that the shrill cry would cease instantly and not gradually. However, science has been at fault more than once, and I do not care to take liberties with this statement.—J. U. L.
"Hold," I interrupted; "that would be as one quality of matter passing through another quality of matter without disturbance to either, and it is a law in physics that two substances can not occupy the same space at the same time."
"That law holds good as man understands the subject, but bullets are no longer matter. Motion of mass was first changed into motion of molecules, and motion of molecule became finally augmented into motion of free force entities as the bullets disintegrated into molecular corpuscles, and then were dissociated, atoms resulting. At this last point the sense of vision, and of touch, ceased to be affected by that moving column (neither matter nor force), and at the next jump in velocity the atoms themselves disappeared, and free intangible motion resulted—nothing, vacancy.