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Futile efforts to control the future--Law neglected for superstition--Pretentious prophets--Humbugs--Laws of weather changes--Actions of animals--Methods for producing rain suggested--Earthquake indicators--A force beyond control--Possibilities 589

THE REIGN OF LAW.

Knowledge only from experience--Partial mastery by faith--Natural law the ruling force--Good and bad results of faith in the Supernatural--Sin punished--Ignorance punished--Examples--Man slow to learn--Eternal wisdom and goodness--Progress, past, present and future 600

PAGE.

GREAT DISASTERS

AND

HORRORS IN THE WORLD'S HISTORY.

MYTHS OF THE WINDS.

"Gray in his mossy cave AEolus stood Gazing in reverie at the distant sails, That skimmed the surface of the glassy deep, Unvexed by blasts of Eurus' boisterous whims. The restless winds in leash about their lord Full often murmuring, plucked his floating robe, Or stirred his tangled tresses with their breath, Impatient at the lack of wilder liberty."

So sang the bard of the fabled cave of the winds. Thus the old Romans and Greeks have taught us to think and to speak of the spirits of the air. Thus the very name of "spirit" was originally identical with "breath" or "wind." Those poetic old Hellenes! They contrived to find something delightfully human in all the phenomena of nature. The woods were peopled with fauns and dryads. Around the bend of yonder rushy stream, a wary woodsman found a bathing nymph. Beyond that rock Actaeon saw the chaste Diana sporting in the crystal pool. Here is the spot where baffled Phoebus found his Daphne changed into a laurel tree.

See you those stately poplars by the side of Italy's stream? There Pha?thon's mourning sisters changed their fleshly robes for those green spires. From their waving boughs the cry of the kingfisher Alcyone reminds us that

halcyon days may yet be in store for the most unfortunate. The response hurled back from yonder cliff warns us to drop a tear for the poor nymph Echo, whose unrequited love caused her to pine away till only a voice was left. To this day she answers every call, hoping to yet meet her love. That flaunting yellow flower is sprung from that very Narcissus who was so handsome he fell in love with himself. Ten thousand egotistic beauties of later days have not met so happy a fate.

Hark! was that the sea-shell of Triton? Neptune approaches with his Naiad train. You may see the plunge of his dolphin steeds. And see! what vision of incomparable loveliness is that? It is Aphrodite, goddess of love--sprung from the foam of the sea--as fragile as the fleecy mass from whence she came; as inconstant as the tossing wave on which she dances. How can love be otherwise, since she is its queen? In the sky above you see the beautiful Andromeda with the radiant Perseus. There Hercules yet wields his club and wears his lion-skin. And there--

It is vanished. The disenchantment is complete. Modern civilization has replaced the nymph with the peasant, and the faun with the brigand. The pipe of Pan is forever silent. Marsyas is revenged, for Apollo is no more. Jupiter dethroned Saturn; Jupiter has long since been dethroned. Where are the hands that penned those beauteous fancies; the bards that sung the deeds of the gods? Dust and ashes these two thousand years.

Their works live after them. Passing centuries have not improved upon their lovely phantasies: it may be because they could not. Rome has named the months of our year: Norway has aided to name the days of our week. Easter preserves the name of OEstara, Teuton goddess of springtime, of new life, new light. So the names of the winds remain. Auster, the south wind, has his memorial in Australia. Zephyr, the gentle west wind, is still a theme for poet's song. Rude Boreas, "blustering railer," will always find a home in the north. Civilization has not driven him from his domain. AEolus, the master spirit, most powerful because most delicate and beautiful, still stirs our wind-harps with his breath. The spirits of the air are as boisterous and untamed as in the days of AEneas.

And what figures would appeal more strongly to the imagination than these simple personifications? How can too great importance be attached to the part the winds perform in the economy of nature? Without them the land would become a Sahara; the seas would be covered with a London fog. In the rustle of the breeze, as well as in the roar of hurricane, there is purpose and energy. The hand that guides one, controls the other. "He holdeth the wind in his fists."

In every age man's imagination has been strongly influenced by the mysterious or unknown. There is little play for poetic sentiment in the cold practicality of science. That which is clearly comprehended, loses half its charm. The botanist carefully plucks to pieces a flower; it is analyzed, and all its mechanism understood--but it is no longer a flower. The alchemist has produced the wonderful science of chemistry; but the philosopher's stone and the secret of producing gold are forever numbered among the shadowy myths of the past. The explorer has roamed in countless climes amid a myriad perils: a thousand treasures has he given to the world: but his El Dorado and the Fountain of Perpetual Youth have become as a dream in the night. And thus for aye will phantoms vanish as we grasp. Truth bears a magic wand at whose touch the unreal dies as a snowflake in a flame. All time has borne its legends of the risen departed, whose spirits roam the earth by night; but we have not proved that the dead have done in six thousand years so much evil as the living in a single day.

So one by one our cherished fables disappear. The steam-engine seems a thing of life; but we do not find a hidden geni therein. Electricity, one of the youngest of man's practical discoveries, has become the most easily controlled. The bolts of Jove are the prisoners of man. The river is harnessed to the mill and factory. But the winds roam as free as in the day of creation "when the morning stars sang together, and all the sons of God shouted for joy." Of all the forces of nature the wind and sea are least beneath control of man. The command "Subdue and have dominion" has not yet been fully obeyed.

Small wonder, then, that a glamour of mysticism remains about the storm and its birth. Man finds himself in the presence of a power beyond his comprehension. Of the various elements of nature, the wind, the sea and the storm are more than ever the realm of fancy and awe. One often wonders at many other ancient myths; but there seems nothing surprising in the Grecian fancy that the winds were the spirit slaves of AEolus; or in the Arabian thought, that storms were but the battles of wonderful genii, whose weapons were fire, water, and their own powerful breath. In the crash of the thunder the Arab heard their terrible strokes. The Northman beheld giants, contending now with each other, now with the giants of frost or of fire; now resting a moment in their cavern home--now chasing the clouds like frightened sheep from their realm of Mistheim. Some day all these powers would be arrayed in battle with the gods themselves, and Ragnarok, or universal chaos would follow. God made man in his own image; man has ever since endeavored to make all things in his own. So have the winds become personified in every age and land.

Charles Kingsley has given us a beautiful picture of the "air mothers," and the part they play in the realm of nature. Compare the ancient with the modern. We now know the laws and the work of the winds; but we have not found a better manner of picturing them. They are still the beautiful spirits of the air; the Peris of the upper deep, thoughtless in life, weeping repentant tears in the hour of their death.

"Who are these who follow us softly over the moor in the autumn evening? Their wings brush and rustle in the fir boughs, and they whisper before and behind us, as if they called gently to each other, like birds flocking homeward to their nests.

"The woodpecker on the pine stems knows them, and laughs aloud for joy as they pass. The rooks above the pasture know them, and wheel around and tumble in their play.

"The brown leaves on the oak-tree know them, and flutter faintly, and beckon as they pass. In the chattering of the dry leaves there is a meaning, and a cry of weary things longing for rest.

"'Take us home, take us home, you soft air-mothers, now our fathers, the sunbeams, are grown dull. Our green summer beauty is all draggled, and our faces are grown wan and thin; and the buds, the ungrateful children whom we nourished, thrust us off from our seats. Waft us down, you soft air-mothers, upon your wings, to the quiet earth, that we may go to our home, as all things go, and become air and sunlight once again!'

"The bold young fir seeds know them, and rattle impatiently in their cones. 'Blow more strongly, blow more fiercely, slow air-mothers, and shake us from our prisons of dead wood, that we may fly and spur away northeastward, each on his horny wing. We will dive like arrows through the heather, and drive our sharp beaks into the soil, and rise again, as green trees, toward the sunlight, and spread out lusty boughs.'

"They never think, bold fools, of what is coming to bring them low in the midst of their pride--of the reckless axe which will fell them, and saws which will shape them into logs, and the trains which will roar and rattle over them as they lie buried in the gravel of the way, till they are ground and rattled into powder, and dug up and flung upon the fire, that they too may return home, like all things, and become air and sunlight once again.

"The air-mothers hear their prayers, and do their bidding: but faintly, for they themselves are tired and sad, and their garments rent and worn. Ah! how different were those soft air-mothers, when, invisible to mortal eyes, they started on their long sky journey, five thousand miles across the sea.

"Out of the blazing caldron which lies between the two New Worlds, they leaped up, when the great sun called them, in whirls and spouts of clear hot steam, and rushed to the northward, while the whirling earthball whirled them east.

"So northeastward they rushed aloft, across the gay West Indian Isles, having below the glitter of the flying-fish, and the sidelong eyes of cruel sharks: above the canefields and the plantain gardens, and the cocoanut groves which fringe the shores: above the rocks which throbbed with earthquakes, and the peaks of old volcanoes, cinder-strewn: while far beneath, the ghosts of their dead sisters hurried homeward on the northeast breeze.

"Wild deeds they did, as they rushed onward, and struggled and fought among themselves, up and down, and round and backward in the fury of their blind hot youth. They tired themselves by struggling with each other, and by tearing the heavy water into waves; and their wings grew clogged with sea-spray, and soaked more and more with steam.

"At last, the sea grew cold beneath them, and their clear steam sank to mist; and they saw themselves and each other wrapped in dull, rain-laden clouds. Then they drew their white cloud garments around them, and veiled themselves for very shame: and they said, 'We have been wild and wayward: and alas, our pure youth is gone. But we will do one good deed, yet, before we die, and so we shall not have lived in vain. We will glide onward to the land and weep there, and refresh all things with warm, soft rain, and make the grass grow, and the buds burst; we will quench the thirst of man and beast, and wash the soiled world clean.'

"So they are wandering past us, the air-mothers, to weep the leaves into their graves: to weep the seeds into their seed-beds, and to weep the soil into the plains: to get the rich earth ready for the winter, and then creep northward and die there. But will they live again, those chilled air-mothers? Yes; they must live again. For all things move forever: and not even ghosts can rest.

"The corpses of their sisters piling on them from above, press them onward, press them southward toward the sun once more, across the floes, and round the icebergs--weeping tears of snow and sleet--while men hate their wild, harsh voices, and shrink before their bitter breath. They know not that the cold bleak snow-storms, as they hurtle from the black northeast, bear back the ghosts of the soft air-mothers, as penitents, to their father, the great sun.

"But as they fly southward warm life thrills them, and they drop their loads of sleet and snow, and meet their young live sisters from the south, and greet them with flash and thunderpeal. Men call them the southwest wind, those air-mothers: and their ghosts, the northeast trade; and value them, and rightly; because they bear the traders out and back across the sea."

So they live, and so they die, those beautiful air-mothers--for life is evermore fed by death. And in their wayward course they bring the early and the latter rain: that so long as time shall be, seed-time and harvest and summer and winter shall not fail. And men love them, and welcome each in their turn, whether laden with the pure white snow, or the cooling moisture of the distant sea; for man is a fickle creature, and remains constant to none. In summer he sings of the Arctic winds; and in winter, he longs for the breath of the south; for like the air-mothers, his course is ever onward, seeking that which he has not. Yet, sometimes in his discontent, he would curse the soft air-mothers: but without them he could not live. But the bard knows them all, and will sing of their deeds till the sun waxes cold with the weight of years.

CONSTANT WINDS.

"Up from the sea I sprang, O voyager, Ere Aphrodite rose from out its foam. I am a banned, unresting wanderer, Doomed o'er the surface of the deep to roam. Without being aged, o'erwhelmed with days, The end of being is my only dream. I trod the earth ere man's ephemeral race, And onward flee long as yon sun shall beam, Ever, forever, Here, and wherever, Turneth the earth, must I course forever!"

The phenomena of climate and seasons are too familiar to need especial comment or description. They are dependent, in the first place, upon the annual journey of the earth about the sun, the inclination of the earth's axis to its orbit, and the distance of any particular region in question, from the equator.

But the changes thus constantly made are greatly modified by other factors. Chief among these agencies are the form and extent of the continents, their position relative to each other and the water areas, and the currents of the air and sea.

Men usually identify climate with atmospheric conditions. A warm atmosphere is for them the whole of a warm climate: it is really but one of its factors, at most: it is often to be considered as a result, rather than a cause. On lofty plateaus, or in mountainous regions, the heat is not oppressive, even in the tropics; but here the moderate temperature is due to the elevation. France is as far north as Labrador; but there is no similarity whatever in climatic conditions, as there should be, were climate dependent only on the heating of the local atmosphere by the rays of the sun. Who would think of instituting a comparison of sunny Rome or Madrid with the city of New York? Yet the three are nearly on the same parallel: Rome furthest north. So there is little resemblance between the warmth of sunny Florida and the scorching heat of the Sahara: or between the climates in those portions of our own Pacific and Atlantic coasts that lie between the same parallels. So we find that though there is a general relation between the climate of a region and its distance from the equator, there are many other conditions to be considered. First, let us note atmospheric currents and disturbances.

"The wind bloweth where it listeth, and no man knoweth whence it cometh, or whither it goeth."

"The world do move." The illustration so full of meaning two thousand years since has lost much of its force. The truth of yesterday is the error of to-day. The fact of to-day may be the phantasy of to-morrow. So it has come to pass that in our day the origin and laws of air currents are believed to be as well understood as those of any other forces in nature. Yet scientific theorists are, after all, divided on not a few points.

Two general classes of winds are recognized: the constant, and variable. Constant winds are those that blow all the year in the same direction. The beautiful concept of Kingsley, in the preceding chapter, contains the leading points of our knowledge concerning them.

All the various phenomena of air currents are dependent upon one unchanging law: that gaseous bodies--and all but two others--always greatly expand under the influence of heat. There are two noted partial exceptions: one of these prevents our globe from becoming a complete iceberg, and is as important as the law itself. Iron expands, till its melting point; but in its liquid state it occupies less space than when solid. Water contracts under the influence of cold, until the temperature of 39? is reached; after that it expands: and when frozen occupies about one-eighth more space than before. This wise provision of the Creator is second to none in importance, as regards its influence upon the climate of the earth at large. Had it been otherwise--did ice sink instead of float, our rivers and seas would in time become solid masses of ice; for water is so poor a conductor of heat, that its under-currents warm very slowly. Any one who plunges into a lake in mid-summer may often find the water warm at the surface, and of almost icy coldness a short distance beneath. The great Polar current comes down from Baffin's Bay, and off the coast of Newfoundland it plunges beneath the warm, lighter current of the Gulf Stream; but it is not warmed by it. Registering thermometers detect its icy coldness almost unchanged in the realms of the tropics, far beneath the surface.

To show the poor qualities of water as a conductor of heat, take a long glass tube and fill with water. Then put a piece of ice in one end. The water at the other end may now be brought to the boiling point by means of the flame of a lamp, ere the ice at the other end is melted.

Every one is familiar with the fact that heated air rises; but not all inquire why it does so. Take a foot-ball or bladder and partially inflate it; then hold it near a hot fire, and it may be swollen almost to bursting. Now, there is no more air in it than before; and if it be laid in a cold place, it will shrink to its first inflation. This shows how great is the expansive power of heat on the atmosphere. The same weight occupying a much larger bulk, we perceive that heated air is much lighter, and must rise. This, then, is the cause of what are known as constant winds.

As the earth revolves on its axis, the air is unequally heated, that nearest the equator becoming the warmest, in consequence of its receiving the most direct rays. Here, then, the air rises most rapidly; while the cooler air to the north or south must flow southward or northward to fill the vacuum. Now, the earth turning on its axis from west to east, whirls the northward and southward currents to the westward, so that they appear to blow from the northeast and southeast. The result of this loss of direction is gradual; so that when first perceptible, they are almost from a due northerly or southerly direction. As they near the equator, they are more rapid, and turn more decidedly to the west, never becoming violent, however; rarely exceeding fifteen to eighteen miles per hour.

It would appear that at the point where these meet each other, or come in contact with the ascending warm current, there must be a region of calms or light, variable winds, and occasional tempests. Such, in fact, is the case. This belt is from two hundred and eighty to four hundred miles in width, and lies along the thermal equator, or line of greatest average heat. This is not the same at the earth's equator, properly so called; for, as the land has greater capacity for absorbing and retaining heat than the sea, and as most of the land lies in the northern hemisphere, it is evident the highest mean temperature must be north of the equator. So this belt of calms must lie in the same region; and, in fact, in the Atlantic ocean it lies between 3 and 9? north latitude, and in the Pacific, between 4 and 8?. As the sun travels northward during the first half of the year, this region of calms shifts slightly, also, so as to always nearly coincide with belt of the greatest mean heat.

At first sight, it appears curious that the motion of the earth should deflect these winds to the west. It would appear that the earth, atmosphere and all, must revolve as a unit about its axis; else, if the atmosphere lose time, its speed to the westward should be constantly accelerated, and long ago should have reached a velocity that would shake the mountains themselves; while, in fact, there is no variation perceptible.

It should be remembered that at the equator the earth is about twenty-four thousand miles in circumference; and as one complete revolution is made every twenty-four hours, a point on the equator is carried eastward at the rate of one thousand miles an hour. But if a circle be drawn around the earth parallel to the equator, at some distance from it, it is at once seen that any object in this circle, having a shorter distance to traverse, is carried eastward at a slower rate; so that a point only a few yards from either pole must necessarily advance but a few feet per hour. So then, a body of air moving from either pole toward the equator, must needs advance very slowly if the friction of the upper reverse currents and of the surface of the globe are to have opportunity to overcome its relative inertia and give it the same velocity as that of any point over which it may pass.

Now, in the case of these constant winds, the inertia is very nearly overcome, as they start from a circle in which the velocity to the eastward is about 750 miles per hour. If the inertia were fully overcome, there would be no perceptible wind; as the velocity is actually but fifteen to eighteen miles per hour, it appears that the friction encountered actually destroys from thirteen-fourteenths to fifteen-sixteenths of the inertia. Hence, we find these constant air currents toward the west are, in reality, the result of the earth carrying any object on its surface a little more rapidly than the atmosphere moves; so that these winds are precisely the same in principle as the well-known fact that when you run rapidly in still air , it seems that the wind is blowing directly in your face.

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