"Refraction" Quotes from Famous Books
 ... alcoholic homes driving the children out into the streets. This was found to be markedly the case, the children of alcoholic parents spending much more of their spare time in the streets. An examination, however, of the vision and refraction of children with regard to the time they spent in-and out-of-doors, showed no clear and definite result, the children who spent the whole or most of their spare time in the streets having the most myopia and also most normal sight. It was not possible to assert that the outdoor life ...
— Applied Eugenics • Paul Popenoe and Roswell Hill Johnson
... different varieties of tabasheer, Brewster proceeded to determine its refractive index, arriving at the remarkable result that tabasheer "has a lower index of refraction than any other known solid or liquid, and that it actually holds an intermediate place between water and gaseous bodies!" This excessively low refractive power Brewster believes to afford a complete explanation of the extraordinary behavior ...
— Scientific American Supplement, No. 595, May 28, 1887 • Various
... particular occasion it stood still for a time, thus causing the light to remain longer; and I would say that they did not conjecture that, from the amount of snow in the air (see Josh. x. 11), the refraction may have been greater than usual, or that there may have been some other cause which we will not ...
— The Philosophy of Spinoza • Baruch de Spinoza
... thought that they saw lakes of water in the distance, and hastened on to them; and then they fancied they were close to rivers and islands, covered with luxuriant foliage, but still were doomed to disappointment; as all was the result of the highly-rarefied air, and the refraction of the sun's rays on the sultry plain. What would they have given for a bush even to afford them any shelter from the noonday sun, for the crowns of their heads appeared as if covered with live coal, and their minds began to wander. The poor horses moved at the slowest pace, and only when ...
— The Mission • Frederick Marryat
... observatories we employ telescopes of two entirely different classes. The more familiar forms are those known as refractors, in which the operation of condensing the rays of light is conducted by refraction. The character of the refractor is shown in Fig. 1. The rays from the star fall upon the object-glass at the end of the telescope, and on passing through they become refracted into a converging beam, so that all intersect at the focus. Diverging from thence, the rays encounter ...
— The Story of the Heavens • Robert Stawell Ball
... gone! In its place was a tenuous refraction that told where it had been. That and a thin layer of perfectly reflective copper ... colorless now, but Manning knew it was copper, for it represented the continuation of the ...
— Empire • Clifford Donald Simak
... should be made to the article REFRACTION for the general discussion of the phenomenon known as the refraction of light. It is there shown that every substance, transparent to light, has a definite refractive index, which is the ratio of the velocity of light ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various
... light appearance in the air at Brighton, it is a distant refraction (I have no doubt) of the gorgeous and shining surface of Tavistock House, now transcendently painted. The theatre partition is put up, and is a work of such terrific solidity, that I suppose it will be dug up, ages hence, from the ruins of London, by that Australian of ...
— The Letters of Charles Dickens - Vol. 1 (of 3), 1833-1856 • Charles Dickens
... these Vapours, and the Circumstance attending their Passage, they appear to us differently below. For if they be extremely subtile they mount very high, and there, according to the Sentiment of Sir Isaac Newton, form by Refraction the Azure, or blue Colour, that over-spreads the Sky in serene Weather. Clouds, while they remain visible, do not rise above the Height of a Mile; and we always observe, that the highest are of a very light Colour, and hardly seen. If, therefore, small Clouds increase, it shews, ...
— The Shepherd of Banbury's Rules to Judge of the Changes of the Weather, Grounded on Forty Years' Experience • John Claridge
... Toothed Wheel 6. White Light resolved into Colors 7. Showing amount of Light received by Different Planets 8. Measuring Intensities of Lights 9. Reflection and Diffusion of Light 10. Manifold Reflections 11. Refraction by Water 12. Atmospherical Reflection 13. Refracting Telescope 14. Reflecting Telescope 15. The Cambridge Equatorial Refractor 16. The new Reflecting Telescope at Paris 17. Spectroscope, with Battery of Prisms 18. Spectra of Glowing Hydrogen and of the Sun 19. Illustrating Arcs and Angles 20. Measuring ...
— Recreations in Astronomy - With Directions for Practical Experiments and Telescopic Work • Henry Warren
... become accessible to our psychic perception, corresponding to the lenses of the telescope which design the image. If we continue this comparison, we may say that the censor between two systems corresponds to the refraction of rays during their ...
— Dream Psychology - Psychoanalysis for Beginners • Sigmund Freud
... were as simple as the alphabet to Uncle Robin. He would explain it as a sight reflected on the cloud and thrown on a sea of mist or a desert as on a screen, using difficult words, like "refraction," and words from Euclid, like "angles." But Uncle Alan would object, Uncle Alan mistrusting difficult words and words from Euclid. Alan would raise his head from splicing a fishing-rod or cleaning the lock of a ...
— The Wind Bloweth • Brian Oswald Donn-Byrne
... accident of reflection or refraction, the snows of Monte Sfiorito had become bright green, as if the light that fell on them had passed through emeralds. They both paused, to gaze and marvel for a little. Indeed, the prospect was a pleasing one, as well as a surprising—the sunny lawns, the high trees, the blue lake, and ...
— The Cardinal's Snuff-Box • Henry Harland
... with reference to quotations and cited authorities, all of which have gone through a double process of refraction: first into Russian, then into English. The translator, also a Russian, and far from perfectly acquainted with English, cannot claim to possess the erudition necessary to verify and restore the many quotations ...
— From the Caves and Jungles of Hindostan • Helena Pretrovna Blavatsky
... in spring and autumn so as to kill off the old tufts and allow of the new shoots growing for hay. The fires look like one long streak of quivering flame, the forked tips of which flash and quiver in the horizon, magnified by refraction, and on a dark night are lovely. In the day-time one only sees volumes of smoke which break the monotony of the landscape, though I don't know that it is picturesque. With a slight breeze the fires spread in a marvellous way, even ...
— A Lady's Life on a Farm in Manitoba • Mrs. Cecil Hall
... I turn from that to this race of brave and smiling people, abruptly destiny begins drawing with a bolder hand. Suppose the Japanese were to make up their minds to accelerate whatever process of synthesis were possible in China! Suppose, after all, I am not the victim of atmospheric refraction, and they are, indeed, as gallant and bold and intelligent as my baseless conception of them would have them be! They would almost certainly find co-operative elements among the educated Chinese.... But this ...
— Anticipations - Of the Reaction of Mechanical and Scientific Progress upon - Human life and Thought • Herbert George Wells
... making of achromatic lenses for telescopes had been accomplished, it is true, by Dolland in the previous century, by the union of lenses of crown glass with those of flint glass, these two materials having different indices of refraction and dispersion. But, aside from the mechanical difficulties which arise when the lens is of the minute dimensions required for use with the microscope, other perplexities are introduced by the fact that the use of a wide pencil of light is a desideratum, in order ...
— A History of Science, Volume 4(of 5) • Henry Smith Williams
... "Highland-looking." Over the hill from Kirkoswald a farm-road leads to the coast. As I came down above Turnberry, the sea view was indeed strangely different from the day before. The cold fogs were all blown away; and there was Ailsa Craig, like a refraction, magnified and deformed, of the Bass Rock; and there were the chiselled mountain tops of Arran, veined and tipped with snow; and behind, and fainter, the low, blue land of Cantyre. Cottony clouds stood, in a great castle, over the top of Arran, and blew out in long streamers ...
— The Works of Robert Louis Stevenson - Swanston Edition Vol. XXII (of 25) • Robert Louis Stevenson
... is the mirage, from the Latin miror, to wonder, which appears to be what you are doing just now. The steamer you see sailing along the shore is an optical illusion, a reflection, and not a reality. Refraction, which is the bending of the rays of light, produces this effect. If you look at a straight stick set up in the water, it will appear to be bent, and this is caused by refraction. The learned gentlemen present will excuse me for going back to the ...
— Asiatic Breezes - Students on The Wing • Oliver Optic
... air." The very same effect is perceived when we look at objects through spirits and water that are not perfectly mixed, or when we view distant objects over a red hot poker or over a flame. In all these cases the light suffers refraction in passing from a medium of one density into a medium of a different density, and the refracted rays are constantly changing their direction as the different currents rise in succession. Analogous effects are produced when sound passes through a mixed medium, whether it consists of two ...
— The Mirror of Literature, Amusement, and Instruction - Volume 20, No. 562, Saturday, August 18, 1832. • Various
... (Laughter) Lord Rayleigh's brilliant piece of mathematical work on the dynamics of blue sky is a monument to the application of mathematics to a subject of supreme difficulty, and on the subject of refraction of light he has pointed out the way towards finding all that has to be known, though he has ended his work by admitting that the explanation of the fundamentals of the reflection and refraction ...
— The British Association's visit to Montreal, 1884: Letters • Clara Rayleigh
... lighter than that of the mornings at the same distance from noon. Some may ascribe this to the greater height of the atmosphere in the evenings having been rarefied by the sun during the day; but as its density must at the same time be diminished, its power of refraction would continue the same. I should rather suppose that it may be owing to the phosphorescent quality (as it is called) of almost all bodies; that is, when they have been exposed to the sun they continue to emit light for ...
— The Botanic Garden - A Poem in Two Parts. Part 1: The Economy of Vegetation • Erasmus Darwin
... strikes a cut or polished stone, one or more of the following effects are observed:—it may be transmitted through the stone, diaphaneity, as it is called; it may produce single or double refraction, or polarisation; if reflected, it may produce lustre or colour; or it may produce phosphorescence; so that light may be (1) transmitted; (2) reflected; ...
— The Chemistry, Properties and Tests of Precious Stones • John Mastin
... a moss, Schistostega osmundacea, has been stated to be phosphorescent, the effect is said to be really due to the refraction and reflection of light by minute crystals scattered over its highly cellular leaves, and not to be produced at all ...
— Young Folks' Library, Volume XI (of 20) - Wonders of Earth, Sea and Sky • Various
... Pennsylvania; Professor of Optics and Refraction; formerly Physician in Philadelphia Hospital; Member of Philadelphia County, Pennsylvania ...
— Watch and Clock Escapements • Anonymous
... Sap of Trees. Sound. Acoustics. Sound Mediums. Vibration. Velocity of Sound. Sound Reflections. Resonance. Echos. Speaking Trumpet. The Stethoscope. The Vitascope. The Phonautograph. The Phonograph. Light. The Corpuscular Theory. Undulatory Theory. Luminous Bodies. Velocity of Light. Reflection. Refraction. Colors. The Spectroscope. The Rainbow. ...
— Practical Mechanics for Boys • J. S. Zerbe
... malignant Archimago, creates a false medium, through which posterity is obliged to look at his contemporaries,—a medium which so refracts and distorts their images, that it is almost out of the question to see them correctly. There is no rule, as in astronomy, by which this refraction may be allowed ...
— Atlantic Monthly, Volume 2, Issue 11, September, 1858 • Various
... is explained in the same way as are the things that took place in the other experiments in refraction, or bending of light. The light from the part of the pencil above the water comes straight to your eye, of course; so you see it just as it is. But the light from the part of the pencil in the water is bent when it comes out of the water into ...
— Common Science • Carleton W. Washburne
... at sea, in this manner, without being struck with the boldness of the experiment which launched such massive and complicated fabrics on the ocean. The pure water is a medium almost as transparent as the atmosphere, and the very keel is seen, usually so near the surface, in consequence of refraction, as to give us but a very indifferent opinion of the security of the whole machine. I do not remember ever looking at my own vessel, when at sea, from a boat, without wondering at my own folly ...
— Recollections of Europe • J. Fenimore Cooper
... different. As we ascend the air becomes rarer. It has less moisture, because a wet atmosphere, being heavier, lies nearer the surface of the earth. Being rarer the action of sunlight on the particles is less intense. Reflection and refraction of the rays acting on the light atmosphere do not produce such a powerful effect as on ...
— Aeroplanes • J. S. Zerbe***
... o'clock in the morning, and the rays of the sun struck the surface of the waves at rather an oblique angle; at the touch of the light, decomposed by [v]refraction as through a prism, flowers, rocks, plants, and shells were shaded at the edges by the seven solar colors. It was a marvelous feast for the eyes, this complication of colored tints, a perfect [v]kaleidoscope of green, yellow, orange, ...
— The Literary World Seventh Reader • Various
... almost overgrown by the skin. But this eye is by no means as developed as the organ of vision, for instance, of the water salamander (the triton) or of the so-called axolotl, for it exists only in a kind of embryonic development, and contains neither a vitreous humor nor a lens for the refraction of the rays of light. As, however, the nerve of vision exists, it is possible that this salamander may be able to discern in some manner ...
— Scientific American Supplement, No. 664, September 22,1888 • Various
... hand-rail Ross continued his survey of the horizon, all of which was visible except a small portion obscured by the rise of the conning-tower. The air was remarkably clear. Taking into consideration the refraction of the atmosphere, the navigation lamps of a vessel shown at twenty feet above the sea would be visible from the low-lying deck of the submarine at a distance ...
— The Submarine Hunters - A Story of the Naval Patrol Work in the Great War • Percy F. Westerman
... announced as the sea serpent, but its true nature was soon obvious. At midnight, March 1st, Nassau light hove in sight, dimmed by a thin, soft haze, which hung over the water, and through which the light, by some law of refraction, seemed to be coming out to meet the ship. Overhead all was bright,—almost dazzling with unnumbered stars and familiar constellations, like silver spangles on a background of blue velvet. We anchored off the island an hour before daylight, ...
— Due South or Cuba Past and Present • Maturin M. Ballou
... and split wood. Presently I saw, hastening up the avenue, Mr. George Bradford. He stayed to tea. His beautiful character makes him perennial in interest. As my husband says, we can see nature through him straight, without refraction. My water this morning was deadly cold instead of livingly cold, and I knew the Imp must have taken it from some already drawn, instead of right from the well. The maid brought for me from Mrs. Emerson's "The ...
— Memories of Hawthorne • Rose Hawthorne Lathrop
... by the logical ones of identity, similarity, or analogy. If you know a 'law,' you may discharge your memory of masses of particular instances, for the law will reproduce them for you whenever you require them. The law of refraction, for example: If you know that, you can with a pencil and a bit of paper immediately discern how a convex lens, a concave lens, or a prism, must severally alter the appearance of an object. But, if you don't know the general law, you must charge your ...
— Talks To Teachers On Psychology; And To Students On Some Of Life's Ideals • William James
... painted in the West Indies: a picture of two negresses bathing at Tobago. Behind them hung low tangles of cactus, melo-cactus and white-blossomed orchid; while on the tawny rocks glimmered snowy cotton splashed with a crimson turban; but the marvel of the work lay in the figures and the refraction of their brown limbs seen through crystal-clear water. The picture brought reputation to a man who cared nothing for it; and Barron's "Bathing Negresses" are only quoted here because they illustrate his method of work. He had painted from the sea in a boat moored fore and aft; he had kept the ...
— Lying Prophets • Eden Phillpotts
... dive successfully not long before my visit to this place, but he found so much to interest him in the cave while it was lighted a little by the borrowed gleam from the water, that he lingered there until, the sun moving on his course, the angle of refraction suddenly changed. The child had not the courage to take a plunge into the dark gulf, where there was no beacon to guide him, and where he might have struck against the rock. He therefore remained ...
— Two Summers in Guyenne • Edward Harrison Barker
... not a sign of the dinghy. The schooner lay still in a pool of colourful water, the coral and weeds on the bottom in plain view, some of the swaying plants magnified by refraction. There was no air stirring, and from the far end of the island a morning haze was rising like smoke from flats which ...
— Isle o' Dreams • Frederick F. Moore
... rendered intelligible only by an intimate acquaintance with the very matters defined. It would be tedious to enumerate the countless absurd explanations given in elementary text-books of the phenomena of interference, polarization, and double refraction,—explanations as enigmatical as the inscriptions at Memphis and Karnak,—explanations useless to the optician because needless, and to the student because obscure. It would seem that subjects so simple and beautiful as these ...
— Atlantic Monthly,Volume 14, No. 82, August, 1864 - A Magazine Of Literature, Art, And Politics • Various
... forty feet long, the interior being lower than the opening. A mixture of gases is exhaled, which, being heavier than the atmosphere, fills it up to the level of the entrance; and when the sun is shining into the cave, one can see the gaseous fumes swaying to and fro, owing to the difference of refraction. ...
— Round About the Carpathians • Andrew F. Crosse
... made to revolve by means of clockwork, were fed with mineral oil, a refined kerosine; and the refraction was caused by highly ...
— By Water to the Columbian Exposition • Johanna S. Wisthaler
... Little white gulls, with red legs and beaks, came dipping over the water, solemnly wondering at the intruders. The morning mists rolling along before the resistless monarch of day confused the visible world for a time, so that between refraction and reflection and buoyant spirits Victor Ravenshaw felt that at last he had found the realms of fairyland, and a feeling of certainty that he should soon rescue his ...
— The Red Man's Revenge - A Tale of The Red River Flood • R.M. Ballantyne
... not hope to render it hastily. Look at it well, making out everything that you see, and distinguishing each component part of the effect. There will be, first, the stones seen through the water, distorted always by refraction, so that if the general structure of the stone shows straight parallel lines above the water, you may be sure they will be bent where they enter it; then the reflection of the part of the stone above the water crosses and interferes with the part that is seen through it, so that you can hardly ...
— The Crown of Wild Olive • John Ruskin
... three baths in all, natural basins of rock fed by streams of mountain water, and shaded by the dense foliage of lofty trees. One of them is circular in form, and the water is curiously coloured, by some trick of reflection or refraction, to a dull steely blue. A plunge in the clear cool water was well worth the trifling fee we paid to the celestial, and we returned to our hotel with ...
— A Visit to Java - With an Account of the Founding of Singapore • W. Basil Worsfold
... reflector of glass in which both outer and inner surfaces were spherical but of different radii of curvature, so that the reflector was thicker in the middle. This device was "silvered" on the outside and the refraction in the glass, as the light passed through it to the mirror and back again, corrected the spherical aberration of the mirrored surface. These have been extensively used. Many combinations of curved surfaces have been developed for special ...
— Artificial Light - Its Influence upon Civilization • M. Luckiesh
... imperfect, it was impossible that the absolute objective truth of anything could be seen by any mortal, but only some partial approximation, and, as it were, sketch of it, according as the object was represented with more or less refraction on the mirror of his subjectivity. And therefore, as the true inquirer deals only with the possible, and lets the impossible go, it was the business of the wise man, shunning the search after absolute truth as an impious attempt of the Titans to scale Olympus, to busy himself humbly ...
— Phaethon • Charles Kingsley
... is composed of all the colors. And the white light may be broken up (separated by refraction or the turning aside of light rays from their true course) into the colors of the rainbow, which is itself only this same decomposition of light by atmospheric refraction. Black is the absence of light, and consequently of color. This is not the case with ...
— The Painter in Oil - A complete treatise on the principles and technique - necessary to the painting of pictures in oil colors • Daniel Burleigh Parkhurst
... day after parting from the brig we encountered a tropical storm. The sun rose red and angry, and owing to the great refraction appeared three times its natural size. It climbed lazily to the zenith, and at noon we were shadowless. The sky was as calm as a vault, and the surface of the water was like burnished steel. The heat became so stifling that even the Africans were gasping for breath, and we envied them ...
— The Martin Luther King, Jr. Day, 1995, Memorial Issue • Various
... to remark that as another result of the thinness of the Martian atmosphere twilight is much shorter than on the earth, the light being less diffused when the sun is below the horizon, and refraction also ...
— To Mars via The Moon - An Astronomical Story • Mark Wicks
... was standing at the side of a mirror where the laws of incidence and refraction would unfortunately not permit her to ...
— The Gentle Art of Making Enemies • James McNeill Whistler
... the same period the examination of the moon was completed. She appeared completely riddled with craters, and her essentially volcanic character was apparent at each observation. By the absence of refraction in the rays of the planets occulted by her we conclude that she is absolutely devoid of an atmosphere. The absence of air entails the absence of water. It became, therefore, manifest that the Selenites, to support life under such conditions, must possess a special organization of their own, ...
— Jules Verne's Classic Books • Jules Verne
... ignorant child! Indeed, Ratty, my love, you must study. I will give you the renowned Kirwan's book. Charlotte tore some of it for curl papers; but there's enough left to enlighten you with the sun's rays, and reflection and refraction—" ...
— Handy Andy, Vol. 2 - A Tale of Irish Life • Samuel Lover
... now abandoned herself utterly, plunging gaily into the deepest waters of the basin. From side to side of its narrow depths she sped rapidly, the blue-white of the spring water showing her lithe limbs in perfect grace of motion made mystically indefinite and shimmering by refraction through the little rippling waves her progress raised. She raced and strained, from the pure love of effort, as if a stake of magnitude depended on ...
— In Old Kentucky • Edward Marshall and Charles T. Dazey
... series of eight lenses one foot in diameter and three feet focal distance to revolve with any velocity up to sixty revolutions per minute round a central lamp. The light from this lamp being concentrated by refraction through the eight lenses into eight pencils, having a divergence of about eight degrees each, illuminated when at rest not quite fifty degrees of the horizon; but when this system of lenses was put into rapid motion, every degree ...
— Smeaton and Lighthouses - A Popular Biography, with an Historical Introduction and Sequel • John Smeaton
... charts were studied. The atmospheric conditions were such that it was very possible that due to refraction Venus would have been visible just on the horizon. The fact that the UFO faded so fast would bear this out because the conditions for such refraction are critical and a slight change in atmospheric conditions could easily have caused the ...
— The Report on Unidentified Flying Objects • Edward Ruppelt
... the latitude of Formentera was found to be 38deg. 39min 57.07sec., a result differing by 2.14sec. from the mean of the 1318 inferior culminations given above. [This difference cannot be accounted for by any difference in the tables of refraction, as neither the employment of those of Bradley, of Piazzi, of the French, of Groombridge, of Young, of Ivory, of Bessel, or of Carlini, would make a difference of two-tenths ...
— Decline of Science in England • Charles Babbage
... was due to an actual astral disturbance, or to light-signalling to the earth or other planet, it would be difficult—in fact, impossible—to ascertain with the means I had at my command. Perhaps it was only an optical illusion caused by refraction and deflected rays of vision, owing to the effect upon the atmosphere of the heated rocky mass by our side and under us—such as is the case in effects of mirage. I am not prepared to express an opinion, and only state what my men and I saw, merely suggesting what seem ...
— Across Unknown South America • Arnold Henry Savage Landor
... argued from it, that axioms are not the foundations or first principles of geometry, from which all the other truths of the science are synthetically deduced (as the laws of motion and of the composition of forces in dynamics, the equal mobility of fluids in hydrostatics, the laws of reflection and refraction in optics, are the first principles of those sciences); but are merely necessary assumptions, self-evident indeed, and the denial of which would annihilate all demonstration, but from which, as premises, nothing can be demonstrated. In the present, as in many other instances, this thoughtful ...
— A System Of Logic, Ratiocinative And Inductive • John Stuart Mill
... though the practised eye of a mariner often detects vessels, which are hid from others, merely because they are not sought in the proper place. The deception may also be aided by a slight degree of refraction. ...
— The Water-Witch or, The Skimmer of the Seas • James Fenimore Cooper
... when—Now what is to be done?" True for her that there followed gentle feelings, and gentler yet in her attendance on her patron's obsequies, in the discovery that all of which he died possessed he'd left to her, but it is the duller surfaces that are slowest to give refraction, the least used springs that are least pliant. She was come a long road from her first signs of hardening. She was past, now, the stage where, when grieving for the little old man, she would have felt contrition that her first thought at his death had been, not of him, but of his death's effect ...
— This Freedom • A. S. M. Hutchinson
... without cover, it was not likely they would allow me to come within range: nevertheless, I was determined to make the attempt. I rowed up the lake, occasionally turning my head to see if the game had taken the alarm. The sun was hot and dazzling; and as the bright scarlet was magnified by refraction, I fancied for a long time they were flamingoes. This fancy was dissipated as I drew near. The outlines of the bills, like the blade of a sabre, convinced me they were the ibis; besides, I now saw ...
— The Hunters' Feast - Conversations Around the Camp Fire • Mayne Reid
... the next morning the sun was pouring in between her curtains of old brocade, and its refraction from the ripples of the Canal was drawing a network of golden scales across the vaulted ceiling. The maid had just placed a tray on a slim marquetry table near the bed, and over the edge of the tray Susy discovered the small serious face of Clarissa Vanderlyn. At the sight ...
— The Glimpses of the Moon • Edith Wharton
... we are apt to think of Lincoln as of the long ago, as almost a contemporary of Washington and of the Revolutionary fathers. The immensity of the history which has been crowded into those forty-five years has distorted our mental vision, as ordinary objects are sometimes distorted by refraction. Yet when we reflect, the distortion disappears. But the wonder still remains. The years during which the deeds of Lincoln have been a memory to us do not carry us back to the early days of our own country. They do not carry us back even to the time ...
— Fifty Years of Public Service • Shelby M. Cullom
... fine?" "That is the very thing I want to tell you about. The sun, shining upon vapor and falling water, makes all these beautiful colors. That is the way I mix the rainbow. The science which teaches about the rays of light, their reflection and refraction, and the coloring they give to different objects, is called Optics: it is an interesting study, and I wish you to be a proficient in it." "Optics, is it? That seems to me very different from blowing soap-bubbles. I do hate to be cheated into learning ...
— Holidays at the Grange or A Week's Delight - Games and Stories for Parlor and Fireside • Emily Mayer Higgins
... liquid figures, known to be produced in the planes of freezing, when radiant heat is sent through ice, we may safely infer symmetry of aggregation, and hence conclude that the line perpendicular to the planes of freezing is a line of no double refraction; that it is, in fact, the optic axis of the crystal. The same remark applies to the line joining the opposite blunt angles of a crystal of Iceland spar. The arrangement of the molecules round this line being symmetrical, the condition of the ether depending upon these molecules shares ...
— Faraday As A Discoverer • John Tyndall
... is which transforms plumbago or some other form of carbon into the condition of a diamond cannot be stated. Diamond is the purest form of carbon found in nature. It is a beautiful object, alike from the results of its powers of refraction, as also from the form into which its carbon has been crystallised. How Nature, in her wonderful laboratory, has precipitated the diamond, with its wonderful powers of spectrum analysis, we cannot say with certainty. Certain chemists have, at a great expense, produced crystals which, ...
— The Story of a Piece of Coal - What It Is, Whence It Comes, and Whither It Goes • Edward A. Martin
... more or less than disassociated states of mind and need not in reality be any more serious than errors of refraction of vision, faulty locomotion or lack of coordination. It comes because individuals know nothing of the psychology of themselves or their own minds and is the result of over-intensified mental and physical activity and loss of poise, physically, mentally and psychically. ...
— Freedom Talks No. II • Julia Seton, M.D.
... along the trail; and for an instant, the writhing sun glare played the same trick with his own vision. Something a dirty white quivered above the black lava table like the loose canvas top of a tented wagon. The Ranger side-stepped the trail for a different angle of refraction. The object blurred, then reappeared, a leaf from a note book not thirty yards away. Wayland went quickly forward. He was aware as he walked that the shrivelled earth heaved and sank so that he had the sensation of staggering. It was a dirty leaf from a note book ...
— The Freebooters of the Wilderness • Agnes C. Laut
... has to deal with some refraction of this kind of problem. When it comes, moralizing and generalizing about the weakness of human nature does no good whatever. To call the man a fool is as invidious as to waste indignation upon the cause of his misfortune. Likewise, any frontal ...
— The Armed Forces Officer - Department of the Army Pamphlet 600-2 • U. S. Department of Defense
... elements; but there is no means of distinguishing the elements taken from reality from those which are the work of imagination. To use Niebuhr's expression, a legend is "a mirage produced by an invisible object according to an unknown law of refraction." ...
— Introduction to the Study of History • Charles V. Langlois
... times observed during a period of about 5 years. She developed into an unusually attractive young woman, showing at times various mild nervous disturbances as well as character difficulties. Only occasionally has she worn the glasses which corrected her errors of refraction. During this time she has not been severely ill. She has a palpable thyroid which has hardly increased in size. When last seen she was notable for a very clear skin, good color, and bright eyes. Conjunctival and corneal reflexes much diminished. ...
— Pathology of Lying, Etc. • William and Mary Healy
... does not disappear entirely in the Earth's cone of shadow; the solar rays are refracted round our globe by our atmosphere, and curving inward, illumine the lunar globe with a rosy tint that reminds one of the sunset. Sometimes, indeed, this refraction does not occur, owing doubtless to lack of transparency in the atmosphere, and the Moon becomes invisible. This happened recently, on April ...
— Astronomy for Amateurs • Camille Flammarion
... ordinarily resorted to, on account of the varying declination of the moon, and the inconstancy of the horizontal refractions, which are perpetually changing according to the state the atmosphere is in at the time. For the moon continues but for a short time in the equinoctial, and the refraction at a mean rate elevates her apparent place near the horizon, half as much ...
— Thoughts on Man - His Nature, Productions and Discoveries, Interspersed with - Some Particulars Respecting the Author • William Godwin
... these several processes of taking the latitude there are numerous possibilities of inexactness. It does not appear that any correction was made for refraction of light, or the precession of the equinoxes. But the most important source of inaccuracy was in the use of the astrolabe whose disk was so small that its divisions could not be carried beyond degrees, and consequently minutes were arrived at by sheer estimation, and usually when the work ...
— Voyages of Samuel de Champlain V3 • Samuel de Champlain
... illusions of the senses, which are believed to be real by primitive men, and by those ignorant of physical laws, have a similar origin. The objection of such phenomena as a mirage, or the tremulous effect produced in tropical regions by the refraction and reflection of light on trees, rocks, and mountains, so well described by Humboldt, is due to ignorance of the laws of nature, and this is in fact an entification of the phenomenon, occasioned by the innate tendency ...
— Myth and Science - An Essay • Tito Vignoli
... inculcating, at least, admits of no solution from it. In short it is this. Before the double convex glass or concave speculum EBF, let the point A be placed at such a distance that the rays proceeding from A, after refraction or reflection, be brought to unite somewhere in the AxAB. And suppose the point of union (i.e. the image of the point A, as hath been already set forth) to be Z; between which and B, the vertex of the glass or speculum, conceive the eye to be anywhere ...
— An Essay Towards a New Theory of Vision • George Berkeley
... interventions of the gods, for some special purpose at the time. Thus, the rainbow was supposed to be a celestial road, made to accommodate the swift messenger of the gods, when she was sent on an errand, and withdrawn as soon as she had done with it. We now know that the laws of the refraction and reflection of light produce the radiant iris, and that it will always appear whenever drops of water in the air present themselves to the sun's rays in a suitable position. Knowing this, we have ceased to ask what the rainbow ...
— Atlantic Monthly, Vol. 9, No. 55, May, 1862 • Various
... time the survey of the moon was being completed; she appeared riddled with craters, and her essentially volcanic nature was affirmed by each observation. From the absence of refraction in the rays of the planets occulted by her it is concluded that she can have no atmosphere. This absence of air entails absence of water; it therefore became manifest that the Selenites, in order to live under such conditions, ...
— The Moon-Voyage • Jules Verne
... confounded light," he cried, and his cheeks flushed with annoyance. "Think of my wasting three cartridges in that fashion! If I had him at Bisley I'd shoot the turban off him, but this vibrating glare means refraction. What's ...
— The Tragedy of The Korosko • Arthur Conan Doyle
... the earth's surface. The idea of creating light not only involves the Divine Conception of the thing, and the marvellous method of its production,[1] but doubtless, also, all those wonderful laws of reflection, refraction, polarization, and a thousand others, which the science of ...
— Creation and Its Records • B.H. Baden-Powell
... the air upon a surface of glass or water passes on in a straight line through the body; but if it, in passing from one medium to another of different density, fall obliquely, it is bent from its direct course and recedes from it, either towards the right or left, and this bending is called refraction; (see Fig. 3, b.) If a ray of light passes from a rarer into a denser medium it is refracted towards a perpendicular in that medium; but if it passes from a denser into rarer it is bent further from a perpendicular in that ...
— The History and Practice of the Art of Photography • Henry H. Snelling
... of the film is altered different colors preponderate, causing the appearance of rings or bands, according to the nature of the experiment. The dark appearance on the screen corresponding to the thinnest part of the film is probably due to refraction of the ray of light reflected from the second surface, consequent in its passing from a rare into a denser medium, and again from the denser medium into the rare, which refraction Lord Rayleigh considers to effect a retardation equivalent to ...
— Scientific American Supplement, No. 598, June 18, 1887 • Various
... is not diaphanous convinces me that it is a dense vapor formed by the calorification of ascending moisture dephlogisticated by refraction. A few endiometrical experiments would confirm this, but it is not necessary. ...
— Innocents abroad • Mark Twain
... functions of the parts are not given with complete accuracy. Many other points of physiological optics are touched on, in general erroneously. Bacon then discusses vision in a right line, the laws of reflection and refraction, and the construction of mirrors and lenses. In this part of the work, as in the preceding, his reasoning depends essentially upon his peculiar view of natural agents and their activities. His fundamental physical maxims are matter and force; ...
— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 - "Austria, Lower" to "Bacon" • Various
... engaged in constructing a telescope of 6 feet aperture and 52 feet focus, and it would have been impossible to have bestowed the necessary attention upon it had we made a business of observing. That instrument is nearly finished, and I hope it will effect something for astronomy. The unequal refraction of the atmosphere will limit its powers, but how far remains to be ascertained.... Lady Rosse joins me in very kind remembrances and believe me ...
— Personal Recollections, from Early Life to Old Age, of Mary Somerville • Mary Somerville
... circumstances, and the disagreeable sensation produced by it returned. I determined to go home and place myself in the same position—as regards the mirror—and if the same effect was produced, I would make up my mind that it was the natural result of some principle of refraction or optics, which I did not understand, and dismiss it. I tried the experiment with the same result; and as I had said to myself, accounted for it on some principle unknown to me, and it then ceased to trouble me. But the God who works through the laws of nature, might surely give a ...
— The Lincoln Story Book • Henry L. Williams
... fabric is warped and bent at a thousand angles,—it is not only the quality of the ancient glass, nor its colour, that gives this unattainable expression to these windows, but the accidental warping and wear of centuries have laid each bit of glass at a different angle, so that the refraction of the light is quite different from any possible reflection on the smooth surface of ...
— Arts and Crafts in the Middle Ages • Julia De Wolf Addison
... falling through air assume definite position—the plate falls horizontally swaying to and fro, the needle turns rapidly about its longer axis, which remains horizontal. Simpson showed excellent experiments to illustrate; consideration of these facts and refraction of light striking crystals clearly leads to explanation of various complicated halo phenomena such as recorded and such as seen by us on the Great Barrier, and draws attention to the critical refraction ...
— Scott's Last Expedition Volume I • Captain R. F. Scott
... God, suffered little up to now, although intensely hot in the day-time, and my eyes so bad that I cannot look at the sun, and scarcely on daylight without a shade. They were bad on leaving Tripoli, having caught a severe ophthalmia from the refraction of the hot rocks when bathing. My left arm is also still very weak, from the accident of falling into a dry well a little before I started. I can't mount the camel without assistance, but begin ...
— Travels in the Great Desert of Sahara, in the Years of 1845 and 1846 • James Richardson
... intense cold. The distant blue belt of timber along the Gizhiga River wavered and trembled in its outlines as if seen through currents of heated air, and the white ghost-like mountains thirty miles away to the southward were thrown up and distorted by refraction into a thousand airy, fantastic shapes which melted imperceptibly one into another, like a series of dissolving views. Every feature of the scenery was strange, weird, arctic. The red sun rolled slowly along the southern horizon, until ...
— Tent Life in Siberia • George Kennan
... curious sensation of having stepped into an old Flemish painting. The hall in which he stood was cool and rather dark, though a bright refraction of light tossed from some upper window upon a tall mirror filled the shadow with broken spangles. Through an open doorway at the rear was the green glimmer of a garden. In front of him was a mahogany sideboard. On its polished ...
— In the Sweet Dry and Dry • Christopher Morley
... tempest, mounted towards them and, as if a humid fog had been projected into the air, the atmosphere sensibly freshened. Below were the liquid masses. They seemed like an enormous flowing sheet of crystal amid a thousand rainbows due to refraction as it decomposed the solar rays. ...
— Rubur the Conqueror • Jules Verne
... N. deviation; swerving &c. v.; obliquation|, warp, refraction; flection[obs3], flexion; sweep; deflection, deflexure[obs3]; declination. diversion, digression, depart from, aberration; divergence &c. 291; zigzag; detour &c. (circuit) 629; divagation. [Desultory motion] wandering &c. v.; vagrancy, evagation[obs3]; ...
— Roget's Thesaurus
... correct the Index Error. Then you subtract the Dip and the Refraction in Altitude, take the sun's semi-diameter from the Nautical Almanac, and add the Parallax. ...
— The Captain of the Kansas • Louis Tracy
... distance of its center as measured from the center of the earth. The observed altitude of a heavenly body as seen at sea by the sextant may be converted to the true altitude by the application of the following four corrections: Dip, Refraction, ...
— Lectures in Navigation • Ernest Gallaudet Draper
... bare, and without the slightest appearance of vegetable life. The inland prospect is shrouded over by a dense mirage, through which here and there are to be discovered the stems of a few distant palm-trees, so broken and disjoined by refraction that they present to the imagination anything but the idea of foliage or shade. The water in the bay is calm and smooth as the polished mirror; not the smallest ripple is to be heard on the beach, to break through the silence of nature; not a breath of air sweeps over its glassy surface, ...
— The Pirate and The Three Cutters • Frederick Marryat
... the sun; short at noon, long at eve. Did you never see it?—But, referred to the sun, it is widest at its base, which is no greater than his own opacity. The divine light is diffused almost entirely around us, and by means of the refraction of light, or else by a certain self-luminousness, or, as some will have it, transparency, if we preserve ourselves untarnished, we are able to enlighten our shaded side. At any rate, our darkest grief has that bronze color of the moon eclipsed. There is no ill which may not be dissipated, ...
— A Week on the Concord and Merrimack Rivers • Henry David Thoreau
... covered with long rushes, the tops of which alone are visible at high water. On one occasion, when in a boat, we were so entangled by these shallows that we could hardly find our way. Nothing was visible but the flat beds of mud; the day was not very clear, and there was much refraction, or, as the sailors expressed it, "things loomed high." The only object within our view which was not level was the horizon; rushes looked like bushes unsupported in the air, and water like mudbanks, ...
— A Naturalist's Voyage Round the World - The Voyage Of The Beagle • Charles Darwin
... Only 4 per cent, of people have perfect sight. Errors in refraction—common in neuropaths—mean that the unstable brain-cells are constantly irritated. Dodd corrected eye-errors in 52 epileptics, 36 ...
— Epilepsy, Hysteria, and Neurasthenia • Isaac G. Briggs
... because thereby the theory is excluded, or at least made extremely improbable, that the phenomenon of refraction is to be ascribed to, a ring of vapor surrounding the sun for a great distance. Indeed, such a refraction should cause a deviation in the observed direction, and, in order to produce the displacement of one of the stars under observation itself a slight proximity of the vapor ring should be sufficient, ...
— The Einstein Theory of Relativity • H.A. Lorentz
... beyond them sun-rent frame houses roofed with cedar shingles straggled away on the one hand, paintless, crude, and square. On the other, a smear of trail led the dazzled vision back across the parched levels to the glancing refraction on the horizon, and the figure of a single horseman showing dimly through a dust cloud emphasized their loneliness. The town was hot and dusty, its one green fringe of willows defiled by the garbage the ...
— The Cattle-Baron's Daughter • Harold Bindloss
... Cooke, long a resident in Holland, and a keen and observing artist, remarked that the skies in the pictures of Backhuysen, though dark and inky, were precisely what we see now—the deep Zuyder Sea swallowing up any refraction of light which would otherwise have illuminated the clouds; while the skies of Cuyp, receiving the coruscations arising from the meeting of the two rivers, the Meuse and the Waal, the scenes of most of his pictures, exhibit that luminous reflection and ...
— Rembrandt and His Works • John Burnet
... the foghorn much better: the presence of different layers of fog and air, and their varying densities, which cause both reflection and refraction of sound, prevent the air from being a reliable medium for carrying it. Now, submarine signalling has none of these defects, for the medium is water, subject to no such variable conditions as the air. Its density is practically non variable, ...
— The Loss of the SS. Titanic • Lawrence Beesley
... successfully wound up, as the pecuniary affairs of their former owners, there was always great choice in Mr Brogley's shop; and various looking-glasses, accidentally placed at compound interest of reflection and refraction, presented to the eye an eternal ...
— Dombey and Son • Charles Dickens |
