Among the Forces - Henry White Warren (books for 8th graders TXT) 📗

in space? That has greatly puzzled all philosophers. Without question there is inexpressible power. It is seen in velocity. But what is it doing? The law of conservation of force forbids the thought that it can be wasted. On the earth its power long ages ago was turned into coal. The power was reservoired in mountains ready for man. It is so great that a piece of coal that weighs the same as a silver dollar carries a ton's weight a mile at sea. But what is the thousand million times more light than ever struck the earth doing in space? That is among the things we want to find out when we get there. There will be ample opportunity, space, time, and light enough.

It is biblically asserted and scientifically demonstrable that space is full of causes of sound. To anyone capable of turning these causes to effects this sound is not dull and monotonous, but richly varied into songful music. Light makes its impression of color by its different number of vibrations. So music sounds its keys. We know the number of vibrations necessary for the note C of the soprano scale, and the number that runs the pitch up to inaudibility. We know the number of vibrations of light necessary to give us a sensation of red or violet. These, apprehended by a sufficiently sensitive ear, pour not only light to one organ, but tuneful harmonies to another. The morning stars do sing together, and when worlds are gone, and heavy ears of clay laid down, we may be able to hear them

Singing as they shine,
"The hand that made us is divine."

There are places where this music is so fine that the soft and soul-like sounds of a zephyr in the pines would be like a storm in comparison, and places where the fierce intensity of light in a congeries of suns would make it seem as if all the stops of being from piccolo to sub-bass had been drawn. No angel flying interstellar spaces, no soul fallen overboard and left behind by a swift-sailing world, need fear being left in awful silences.

There seems to be good evidence that electrical disturbances in the sun are almost instantly reported and effective on the earth. It is evident that the destructive force in cyclones is not wind, but electricity. It is altogether likely that it is generated in the sun, and that all the space between it and us thrills with this unknown power.[1] All astronomers except Faye admit the connection between sun spots and the condition of the earth's magnetic elements. The parallelism between auroral and sun-spot frequency is almost perfect. That between sun spots and cyclones is as confidently asserted, but not quite so demonstrable. Enough proof exists to make this clear, that space may be full of higher Andes and Alps, rivers broader than Gulf Streams, skies brighter than the Milky Way, more beautiful than the rainbow. Occasionally some scoffer who thinks he is smart and does not know that he is mistaken asks with an air of a Socrates putting his last question: "You say that 'heaven is above us.' But if one dies at noon and another at midnight, one goes toward Orion and the other toward Hercules; or an Eskimo goes toward Polaris and a Patagonian toward the coal-black hole in the sky near the south pole. Where is your heaven anyhow?" O sapient, sapient questioner! Heaven is above us, you especially; but going in different directions from such a little world as this is no more than a bee's leaving different sides of a bruised pear exuding honey. Up or down he is in the same fragrant garden, warm, light, redolent of roses, tremulous with bird song, amid a thousand caves of honeysuckles, "illuminate seclusions swung in air" to which his open sesame gives entrance at will.

II. But there will be in space what the world has become. It is nowhere intimated that matter had been annihilated. Worlds shall perish as worlds. They shall wax old as doth a garment. They will be folded up as a vesture, and they "shall be changed." The motto with which this article began says heavens pass away, elements melt, earth and its works are burned up. But always after the heaven and earth pass away we are to look for "new heavens and a new earth." On all that God has made he has stamped the great principle of progress, refinement, development--rock to soil, soil to vegetable life, to insect, bird, and man. Each dies as to what it is, that it may have resurrection or may feed something higher. So, in the light of revelation, earth is not lost. Science comes, after ages of creeping, up to the same position. It, too, asserts that matter is indestructible. Burn a candle in a great jar hermetically sealed. The weight of the jar and contents is just the same after the burning as before. A burned-up candle as big as the world will not be annihilated. It will be "changed."

It is necessary for us to get familiar with some of the protean metamorphoses of matter. Up at New Almaden, above the writer, is a vast mass of porous lava rock into which has been infiltrated a great deal of mercury. How shall we get it out? You can jar out numberless minute globules by hand. This metal, be it remembered, is liquid, and so heavy that solid iron floats in it as cork does in water. Now, to get it out of the rock we apply fire, and the mercury exhales away in the smoke. The real task of scientific painstaking is to get that heavy stuff out of the smoke again. It is changed, volatilized, and it likes that state so well that it is very difficult to persuade it to come back to heaviness again.

Take a great mass of marble. It was not always a mountain. It floated invisibly in the sea. Invisible animals took it up, particle by particle, to build a testudo, a traveling house, for themselves. The ephemeral life departing, there was a rain of dead shells to make limestone masses at the bottom of the sea. It will not always remain rock. Air and water disintegrate it once more. Little rootlets seize upon it and it goes coursing in the veins of plants. It becomes fiber to the tree, color to the rose, and fragrance to the violet. But, whether floating invisibly in the water, shell of infusoria in the seas, marble asleep in the Pentelican hills, constituting the sparkle and fizz of soda water, claiming the world's admiration as the Venus de Milo, or giving beauty and meaning to the most fitting symbol that goes between lovers, it is still the same matter. It may be diffused as gas or concentrated as a world, but it is still the same matter.

Matter is worthy of God's creation. Astronomy is awe-full; microscopy is no less so. Astronomy means immensity, bulk; atoms mean individuality. The essence of matter seems to be spirit, personality. It seems to be able to count, or at least to be cognizant of certain exact quantities. An atom of bromine will combine with one of hydrogen; one of oxygen with two of hydrogen; one of nitrogen with three of hydrogen; one of silicon with four of hydrogen, etc. They marry without thought of divorce. A group of atoms married by affinity is called a molecule. Two atoms of hydrogen joined to one of oxygen make water. They are like three marbles laid near together on the ground, not close together; for we well know that water does not fill all the space it occupies. We can put eight or ten similar bulks of other substances into a glass of water without greatly increasing its bulk, some actually diminishing it. Water molecules are like a mass of shot, with large interstices between. Drive the atoms of water apart by heat till the water becomes steam, till they are as three marbles a larger distance apart, yet the molecule is not destroyed, the union is still indissoluble. One physicist has declared that the atoms of oxygen and hydrogen are probably not nearer to each other in water than one hundred and fifty men would be if scattered over the surface of England--one man for each four hundred square miles.[2] What must the distance be in steam? what the greater distance in the more extreme rarefactions? It is asserted that millions of cubic miles of some comets tails would not make a cubic inch of matter solid as iron. Now, when earth and oceans are "changed" to this sort of tenuity creations will be more easy. We shall not be obliged to hew out our material with broadaxes, nor blast it out with dynamite. Let us not fear that these creations will not be permanent; they will be enough so for our purpose. We can then afford to waste more worlds in a day than dull stupidity can count in a lifetime.

We are getting used to this sort of work already. When we reduce common air in a bulb to one one-thousandth of its normal density at the sea we get the possibility of continuous incandescent electric light by the vibration of platinum wire. When we reduce it to a tenuity of one millionth of the normal density we get the possibility of the X rays by vibrations of itself without any platinum wire. The greater the tenuity the greater the creative results. For example, water in freezing exerts an expansive, thrusting force of thirty thousand pounds to the square inch, over two thousand tons to the square foot; an incomprehensible force, but applicable in nature to little besides splitting rocks. On the other hand, when water is rarefied into steam its power is vastly more versatile, tractable, and serviceable in a thousand ways. Take a bit of metal called zinc. It is heavy, subject to gravitation, solid, subject to cohesion. But cause it to be burned, to pass away, and be changed. To do this we use fire, not the ordinary kind, but liquid that we keep in a bottle and call acid. The zinc is burned up. What becomes of it? It becomes electricity. How changed! It is no longer solid, but is a live fire that rings bells in our houses, picks up our thought and pours it into the ear of a friend miles away by the telephone, or thousands of miles away by the telegraph. Burning up is only the means of a new and higher life. Ah, delicate Ariel, tricksy sprite, the only way to get you is to burn up the solid body.

The possibility of rare creation depends on rare material, on spirit-like tenuity. And that is what the world goes into. There is a substance called nitrite of amyl, known to many as a medicine for heart disease. It is applied by inhaling its odor--a style of very much rarefied application. Fill a tube with its vapor. It is invisible as ordinary air in daylight. But pour a beam of direct sunlight from end to end along its major axis. A