Tides

“ And when the winds are low, and when the tides are still, And the round moon rises inland over the naked hill, And o'er her parching seams the dry cloud-shadows pass, And dry along the land-rim lie the shadows of thin grass, Then aches her soul with longing to launch and sink away Where the fine silts lift and settle, and sea-things drift and stray, To make the port of Last Desire, and slumber with her peers In the tide-wash rocking softly through the unnumbered years. ”

“ Everything gone inward and downward from surface and summit, Nature at low tide. In its time will come the height of summer, when the tides of life rise to the tree-tops, or be dashed as silvery insect spray all but to the clouds. ”

“ For an overwhelming proof of tidal efficiency I shall summon the heavens themselves to witness, and I shall point to the stupendous task which tides have already accomplished. As the moon has made and is making tides on the earth, so the earth once raised tides on the moon. ”

“ Along the dry shore of an ancient sea when the tide was out, rain-drops fell on the sand and dust. Tides often come in with a rush, in wild waves driven by the wind, but when there is no wind and no waves rolling in from far - 245 - distant storms the tide may overspread such delicate things as the imprint of rain-drops with a thin protecting film of mud. ”

“ I look out of my window and see the tide in its endless quest, racing up and racing down the river; every day, every night, the year through, for a thousand, for a million ears it goes on, and no one is the wiser, yet the tides have played their part in the history of the globe. But nature's cradle keeps rocking after her child has left it. Only the land benefits from the rain, and yet it rains upon the sea as upon the land. ”

“ So punctual is the daily rise and fall of the tides, that the accustomed eyes of the people can discern the hour of the day by a glance at the shore or the reef, as at a marine chronometer, which here never loses or gains time. ”

“ It is the tide of emotion, that some one day in life begins to rise in the human heart,—and, oh, what a strange, wondrous thing it is! There are Bay-of-Fundy tides, and the uniform tides, and the tideless waters that rest around Pacific Isles ”

“ Why, if it was only the fog, I wouldn’t mind; but, mind you, there’s the tides. The flood tide ’ll be coming along soon, and then where’ll we go to? We may get twisted up into an eddy, and find ourselves on Cape Split; or we may glide up to Windsor, or get thrown on the rocks, goodness ony knows where. There’s no knowin’ where these tides may take it into their blessed hearts to drift us to. ”

“ We know that tides have wrought our solar system into its present form; and are we to say that the wondrous powers of the tides have no grander scope for their exercise? I prefer to believe that tides operate far and wide through the universe, and that in the recognition of the supreme importance of tidal evolution we mark a great epoch in the history of physical astronomy.—Nature. ”

“ The movements of the tiniest wave which rises slowly over the dry pebble on the beach, marking the progress of the advancing tide in the inland bay, is determined by the majestic movements of the great ocean, with all its tides which sweep and circulate from pole to pole. ”

“ The extreme mobility of the sea is displayed not only by the storm waves, and by the soft ripples of the calm day, but is seen in the gentle currents that almost imperceptibly wash our shores, and more manifestly in the perpetual motions of the tides. ”

“ Every one who visits the sea-side, or who lives at a sea-port, should know this constant for the tides, which affect him and his movements so materially. If he will discover it from his own experience, so much the better. ”

“ Homoeopathic magic of the tides.
Dwellers by the sea cannot fail to be impressed by the sight of its ceaseless ebb and flow, and are apt, on the {p167} principles of that rude philosophy of sympathy and resemblance which here engages our attention, to trace a subtle relation, a secret harmony, between its tides and the life of man, of animals, and of plants. In the flowing tide they see not merely a symbol, but a cause of exuberance, of prosperity, and of life, while in the ebbing tide they discern a real agent as well as a melancholy emblem of failure, of weakness, and of death. ”

“ And just as in the history of the position of the shell on the beach we should certainly ascribe great importance to the tides and winds, so in the quality of each individual character we should find corresponding vital tides and winds, as regular and lawful as those of the ocean. ”

“ After reciting illustrations of nature’s periodicity, of the ebbs and flows of tides, and the pulsation of other forces, visible and invisible, he observes that “so also there are tides not only in the affairs of men, but in the primal thing of life itself. ”

“ I had calculated the tides to a nicety for my purpose, and found that the time would prove fairly opportune for my purpose, extreme high tide being at about eight o'clock in the evening, which would leave me, after my purpose was accomplished, sufficient light to make my somewhat tortuous way in safety through the maze of islands and shoals, and reach the open sea before utter blackness intervened. ”

“ The shallowness and narrowness of many parts of the sea, give rise also to a peculiarity in the tides of some parts of the world: for in many places, in the British seas in particular, the greatest swell of the tide is not while the moon is in its meridian hight, and directly over the place, but some time after it has declined thence. ”

“ Another movement of the ocean is the tides. To the ancients, unacquainted with the form of the earth, its position in space, or its relations with the other bodies of the solar system, the tides were naturally inexplicable. It has been possible, only in modern times to attempt their explanation. ”

“ When the sun and moon act conjointly on the tides, which is at the change and full of the moon, they are stronger and run higher than at other times, and are called spring tides; but when the sun and moon are 90 degrees apart, their attractive powers, being in opposition to each other, occasion the tides to be weaker and lower than at other times, and these are called neap tides. ”

“ The tides sweep our shores from filth, and purify our rivers and inlets, affording to the residents of our islands and continents the benefits of a bi-diurnal ablution, and giving a health, and freshness, and purity wherever they appear. ”

“ I’ll go on deck and have another look at the situation. My private opinion is, however, that if they’re coming after us, they’d better come. The tide’s getting higher every minute; and if they get here after we’ve fastened her to the shore, and got her high and dry, they’ll have to wait for twelve good hours before they can get her to float off again,—not to speak of spring tides. Do you know, Bart, if this is spring tide? ”

“ The study of the tides is based on accurate observation of their rise and fall on different places round the earth. To show how these observations are to be made, and how they are to be discussed and reduced when they have been made, I may refer to the last edition of the Admiralty Manual of Scientific Inquiry, 1886. For a complete study of the tides at any port a self-registering tide-gauge should be erected, on which not alone the heights and times of high and low water should be depicted, but also the continuous curve which shows at any time the height of the water. ”

“ Although the sea as a whole keeps its level, yet in various parts it is constantly rising and sinking, sometimes at one place and sometimes at another; these risings and fallings are called tides, and are caused by the joint action of the sun and moon, that is, by their attraction, acting at different distances. ”

“ It is all one to her. For twice a day she recaptures the Mont. She encircles it with the strong arm of her tides; with the might of her waters she makes it once more a thing of the sea.
The tide was rising now.
The fringe of the downs had dabbled in the shoals till they became one. We had left behind the last of the shepherd lads, come out to the edge of the land to search for a wandering kid. We were all at once plunging into high water. Our road was sunk out of sight; we were driving through, waves as high as our cart wheels.... ”

“ In the formation of such beds the tides will play a part. Into the estuaries at the mouths of rivers the tides hurry in and hurry out, and especially during spring tides there are currents which flow with tremendous power ”

“ A minute examination of the tides, including all those data by which they may be accurately calculated, their local set, and the extent to which they are influenced by the periodic winds, and by the sea currents, arc so evident a part of your survey that it need not be dwelt on here. When practicable, their extreme height at the springs should be referred to a fixed object on the shore. ”

“ The argument on which we are to base our researches is really founded on a very familiar phenomenon. There is no one who has ever visited the sea-side who is not familiar with that rise and fall of the sea which we call the tide. Twice every twenty-four hours the sea advances on the beach to produce high tide; twice every day the sea again retreats to produce low tide. These tides are not merely confined to the coasts; they penetrate for miles up the courses of rivers; they periodically inundate great estuaries. In a maritime country the tides are of the most profound practical importance ”

“ The spring tides and the neap tides will become familiar to him, and he will perceive that the spring tides occur when the moon is full or new—or, at all events, that the spring tides are within a certain constant number of days of the full or new moon. ”

“ Apart from peculiarities of their own in normal weather, tides are affected by strong winds and a low barometer, and then the tide tables, with their rise and fall to an inch and their time of high water to a minute, become hopelessly inaccurate. ”

“ The inhabitants of the seashore must be greatly affected by the tides; animals living either about the MEAN high-water mark, or about the MEAN low-water mark, pass through a complete cycle of tidal changes in a fortnight. ”

“ The tides of the sea are due to the pull of the moon, and, in lesser degree, of the sun. The whole earth is pulled by the moon, but the loose and mobile water is more free to obey this pull than is the solid earth, although small tides are also caused in the earth's solid crust. The effect which the tides have on slowing down the rotation of the earth is explained in the text. ”

“ But, in fact, the phenomenon of the tides is just as easy of explanation by the motion of the earth as it is by the moon's presumed drinking propensities, and, as she is a lady, let us hope she has been belied. ”

“ These tides are surpassed in magnitude at other parts of the world. The greatest of all tides are those in the Bay of Fundy, at some parts of which the rise and fall at spring tides is not less than fifty feet. ”

“ So that in a rough way it is a solid sound earth, surrounded by an oval body of water: the long axis of the oval representing the high tides, which, as they follow the moon, slide completely around the earth once in every twenty-four hours. ”

“ They occur in too many places, and sometimes at too great a depth, to be explained by a mere change in the level of the tides, although as the coasts waste away and alter in shape, the height to which the tides rise and fall is always varying, and the level of high tide at any given point may, in the course of many ages, differ by several feet or even fathoms. ”

“ That motion of the water called tides is a rising and falling of the sea: the cause of this is the attraction of the moon, whereby the part of water in the great ocean which is nearest the moon, being most strongly attracted, is raised higher than the rest ”

“ Sunrise offered a very beautiful spectacle; the water was quite unruffled, but the motion communicated by the tides was so great that, although there was not a breath of air stirring, the sea heaved slowly with a grand and majestic motion. ”

“ The kings of the sea."
But, children, at midnight,
When soft the winds blow,
When clear falls the moonlight,
When spring-tides are low;
When sweet airs come seaward
From heaths starred with broom,
And high rocks throw mildly
On the blanched sands a gloom;
Up the still, glistening beaches,
Up the creeks we will hie,
Over banks of bright seaweed
The ebb-tide leaves dry.
We will gaze, from the sand-hills,
At the white sleeping town;
At the church on the hill-side,
And then come back down,
Singing, "There dwells a loved one,
But cruel is she!
She left lonely forever ”

“ On no other supposition can we reasonably account for the fact that our barometric records fail to afford us any very distinct evidence as to the existence of tides in the atmosphere. For you will, of course, remember that our atmosphere may be regarded as a deep and vast ocean of air, which embraces the whole earth, extending far above the loftiest summits of the mountains.
It is one of the profoundest of nature's laws that wherever friction takes place, energy has to be consumed. ”

“ And heaved and heaved, still unrestingly heaved the black sea, as if its vast tides were a conscience; ”

“ God of Jacob! it is the meeting of two fierce tides—the conflict of two oceans moved by adverse winds!” ”

“ A sailless vessel drops adown the stream, And like it, to a sea as wide and deep, Thou driftest gently down the tides of sleep. ”

“ The motion of a liquid of which the particles move among each other with friction, can only be sustained by the incessant degradation of energy from the mechanical form into the lower form of diffused heat. Thus the very fact that the tides are ebbing and flowing, and that there is consequently incessant friction going on among all the particles of water in the ocean, shows us that there must be some great store of energy constantly available to supply the incessant draughts made upon it by the daily oscillation of the tides. ”