"Optical" Quotes from Famous Books
 ... fascination about the idea that I can't understand. Now I do not believe we saw a man walking on fog the other night, and yet I can't resist the desire to hunt the matter out and discover what sort of an optical illusion it was. I am not at all certain the man who took a shot at us was the one we saw across the ravine, either. I had an experience once when I was about nine years old, that, in a way, tainted my mind with the ghost idea, and perhaps that is ...
— Pocket Island - A Story of Country Life in New England • Charles Clark Munn
... larger than black ones. A white square looks larger than a black one. It is said that cattle buyers who are sometimes compelled to guess at the weight of animals have learned to discount their estimate on white animals and increase it on black ones to make allowances for the optical illusion. ...
— Applied Psychology: Making Your Own World • Warren Hilton
... crevice in its ragged but perpendicular sides. At its feet is a cleft about 60 feet long, 16 wide, and 18 deep, full of water at a temperature of 90 degrees. This has an absolute transparency of a singular kind, and perpetrates wonderful optical illusions. Every thing put into it is transformed. The rocks, broken timber, and old cocoa nuts which lie below it, are a frosted blue; the dusky skins of natives are changed to alabaster; and as my companion, in a light ...
— The Hawaiian Archipelago • Isabella L. Bird
... Time, Place or Modesty. You complained also, that a Starer is not usually a Person to be convinced by Reason of the Thing, nor so easily rebuked, as to amend by Admonitions. I thought therefore fit to acquaint you with a convenient Mechanical Way, which may easily prevent or correct Staring, by an Optical Contrivance of new Perspective-Glasses, short and commodious like Opera Glasses, fit for short-sighted People as well as others, these Glasses making the Objects appear, either as they are seen by the ...
— The Spectator, Volumes 1, 2 and 3 - With Translations and Index for the Series • Joseph Addison and Richard Steele
... Courtiers there present were invisible. For indeed it is well said, 'in every object there is inexhaustible meaning; the eye sees in it what the eye brings means of seeing.' To Newton and to Newton's Dog Diamond, what a different pair of Universes; while the painting on the optical retina of both was, most likely, the same! Let the Reader here, in this sick-room of Louis, endeavour to look with ...
— The French Revolution • Thomas Carlyle
... stimulants affect the medulla oblongata principally, opium acts chiefly on the cerebrum, and excites reverie, dreamy ideality, optical delusions, and the creative powers of the imagination; some of these hallucinations are said to be grotesquely beautiful and enjoyable. The effects of this agent differ from those of alcoholic intoxication by not deadening the moral sensibilities, ...
— The People's Common Sense Medical Adviser in Plain English • R. V. Pierce
... view, scene or scenery; an optical device which gave a distortion to the picture unless seen from a particular point; a relief, modelled to produce ...
— Sejanus: His Fall • Ben Jonson
... fear. She thought she saw the light behind the curtains grow to a blaze, as if blown up by a pair of bellows; in another moment the gleams of flame grew brighter, and she fancied that three masked figures suddenly flashed out; but the terrible vision disappeared so swiftly that she took it for an optical delusion. ...
— The Thirteen • Honore de Balzac
... cruel contest, an uncanny stillness fell upon the scene. Meanwhile the hidden face had flushed to the ears, and, when at length it was raised to mine, its crimson calm was as incongruous as an optical illusion. ...
— A Thief in the Night • E. W. Hornung
... apparently, in many matters that now bulk very large in the minds of men; a small theater, equal to none but very modest demands; a few engravings and plaster-casts and paintings—many of them very poor—to serve as a basis for theories of art; a little optical apparatus, a few minerals and plants and bones, to aid in the advancement of science; everything material on a small scale,—this was Weimar a hundred years ago. Truly a restricted outlook upon this spacious world as ...
— The Life and Works of Friedrich Schiller • Calvin Thomas
... Miss Rhody," said the cowpuncher earnestly. "When me and my roan come up this fur and seen we didn't see nothin', I was plumb twisted. Says I to me: 'Here, Tom Collins, is where you got to go an' see a spectacles man 'cause you got optical delusions' And I sure thought ...
— Nan Sherwood at Rose Ranch • Annie Roe Carr
... Rhythm, the harmonious flow of vocal sounds. Rhyme, a word answering in sound to another word. Surge, a great, rolling swell of water. 3. Ves'per, pertaining to the evening service in the Roman Catholic Church. 6. Mi-rage' (pro. me-razh'), an optical illusion causing objects at a distance to seem as though suspended in the air. 7. ...
— McGuffey's Fifth Eclectic Reader • William Holmes McGuffey
... more than an atom in immensity. What you call stars are other suns like ours, surrounded by planets like our earth, but which are invisible on account of their small size. How many are they? Man brings his optical instruments to perfection and is able to pierce further into the fields of heaven, discovering ever more and more. Those which are scarcely visible in the infinite appear much nearer when a new telescope is invented, and ...
— The Shadow of the Cathedral • Vicente Blasco Ibanez
... The progress of optical science, however, has given us the means of determining this apparently insoluble question. It is well known, that physicists are enabled at present to distinguish two kinds of light—natural light and polarised light. A ray of the former exhibits ...
— Chambers's Edinburgh Journal, No. 441 - Volume 17, New Series, June 12, 1852 • Various
... wonderful optical experiments by Roger Bacon (who died in 1292), and in the sixteenth century by Digges, Baptista Porta, and Antonio de Dominis (Grant, Hist. Ph. Ast.), have led some to suppose that they invented the telescope. The writer considers that it is more likely that these notes refer ...
— History of Astronomy • George Forbes
... just as the brass meridian encompasses a terrestrial globe. The resplendency of its light enchanted them, its pure softness delighted them, its perfect regularity astonished them. What was it? they asked Barbican. In a few words he explained it. The beautiful luminous ring was simply an optical illusion, produced by the refraction of the terrestrial atmosphere. All the stars in the neighborhood of the Earth, and many actually behind it, had their rays refracted, diffused, radiated, and finally converged to a focus by the atmosphere, ...
— All Around the Moon • Jules Verne
... and palms with long drooping creepers, and a blaze of brilliant orchids. Smoking-room, house, England, all were gone, and he sat on a settee in the heart of a virgin forest of the Amazon. It was no mere optical delusion or trick. He could see the hot steam rising from the tropical undergrowth, the heavy drops falling from the huge green leaves, the very grain and fibre of the rough bark which clothed the trunks. Even as he gazed a green mottled snake curled noiselessly over a branch above ...
— The Doings Of Raffles Haw • Arthur Conan Doyle
... I am to die at the time I mentioned, although I am sure, when I tell you how I came to know it, you will call me superstitious. For you fellows of the present day are so sceptical and matter-of-fact that you refuse to believe in anything that cannot be proved by optical inspection or by evidence. It was, as I said, just four years ago, on my ninety-third birthday, when St. John the Nepomuc appeared to me in a dream, and said—'Dionysius, my good fellow, make the best of your time! There are only five more years for you in ...
— Dr. Dumany's Wife • Mr Jkai
... appearances, to speak of the five hundred witnesses of whom she was weary of hearing. Her mind was proof against all this; what could be more probable than that a number of devoted followers should be the victims of some optical delusion, especially when their minds were disturbed by grief. Here was a miracle supported on one side by the testimony of five hundred and odd spectators all longing to see their late Master, and contradicted on the other side by common sense and the experience of the remainder ...
— We Two • Edna Lyall
... slope inward and so do the principal surfaces of the building, while the anta-capitals slope forward. These refinements, or some of them, have been observed in several other buildings. They are commonly regarded as designed to obviate certain optical illusions supposed to arise in their absence. But perhaps, as one writer has suggested, their principal office was to save the building from an appearance of mathematical rigidity, to give it something of the semblance ...
— A History Of Greek Art • F. B. Tarbell
... is true of the cultivation of science for its own sake. The stargazer with his telescope, the chemist with crucible and retort, the physiologist with his chemical and optical aids, the purely scientific thinker—all who prosecute science for the love of it—have wrought out results which are breaking as light of the clear morning sun upon the history of nations, thus enabling us to avail ourselves of the past in order to comprehend the ...
— Continental Monthly , Vol V. Issue III. March, 1864 - Devoted to Literature and National Policy • Various
... beauty. Accordingly scientific inquiry was made, and in due time there was collected and tabulated a list of places from whence these effects were seen, together with the dates of such occurrences. Eventually it was concluded that such optical phenomena had a common cause, and that it must be the dust of ultra-microscopic fineness at an enormous altitude. All the facts indicated that such a cloud started from the Sunda straits, and that the prodigious force of the Krakatoa eruption could ...
— Complete Story of the San Francisco Horror • Richard Linthicum
... do not fit you, you are lost in the garments, or you cannot get into them at all; this is not your suit of clothes, it must be another's:—alas, these are not your dimensions, these are only the optical angles you subtend; on the whole, you will never get ...
— The Life of John Sterling • Thomas Carlyle
... Pygmalion's breast, she grows warm and breathes and answers to his charm; as in that symbolic saga, the listening woods and waters and the creatures followed Orpheus with his lute. Scientific knowledge, optical, acoustical, meteorological, geological, only widens and deepens love for her and increases and refines the sense of her beauty. In short, deep feeling for Nature always proves considerable culture ...
— The Development of the Feeling for Nature in the Middle Ages and - Modern Times • Alfred Biese
... provide them; but the energetic citizens were soon on hand. There was much difficulty in finding where the fire was, and heads and feet were turned in various directions, till at length some wight of superior optical powers discovered a faint, ruddy light in the rear of West College. It was an ancient building,—a time-honored structure,—an edifice erected by our forefathers, and by them christened LEMUEL, which in the vernacular tongue is called Lem "for short." The dimensions ...
— A Collection of College Words and Customs • Benjamin Homer Hall
... journeys faster than he, and greets him on his arrival,— was there already long before him. The missionary must be carried by it, and find it there, or he goes in vain. Is there any geography in these things? We call them Asiatic, we call them primeval; but perhaps that is only optical; for Nature is always equal to herself, and there are as good pairs of eyes and ears now in the planet as ever were. Only these ejaculations of the soul are uttered one or a few at a time, at long intervals, and it takes ...
— The Atlantic Monthly, Vol. I., No. 3, January 1858 - A Magazine of Literature, Art, and Politics • Various
... our attention. It presents the most perfect optical illusion imaginable; in looking up to the ceiling, which is here very high, you seem to see the very firmament itself, studded with stars; and afar off, a comet with its long, bright tail. Not far from this Star Chamber, may be seen, in a cavity in the ...
— Rambles in the Mammoth Cave, during the Year 1844 - By a Visiter • Alexander Clark Bullitt
... and perfect crystals, may partly explain the discordant results at which experienced chemists have arrived in their analysis of the same mineral. For the reader will often find that crystals of a mineral determined to be the same by physical characters, crystalline form, and optical properties, have been declared by skilful analysers to be composed of distinct elements. This disagreement seemed at first subversive of the atomic theory, or the doctrine that there is a fixed and constant relation between the crystalline form and structure of a mineral and ...
— The Student's Elements of Geology • Sir Charles Lyell
... Maturity of mind consists in taking part in the prescribed game as seriously as though one believed in it. Good-humored compliance, tempered by a smile, is, on the whole, the best line to take; one lends one's self to an optical illusion, and the voluntary concession has an air of liberty. Once imprisoned in existence, we must submit to its laws with a good grace; to rebel against it only ends in impotent rage, when once we have denied ourselves the ...
— Amiel's Journal • Mrs. Humphry Ward
... dim the senses of the soul; that a body must act as a veil to the spirit, and shut out much knowledge. It is not so here. Matter helps us in the acquisition of knowledge, as, for example, glass in optical instruments. The telescope, with its lenses, gives the eye vast compass; the microscope gives it a power, equally wonderful, of minute vision. True, in these cases it is matter helping matter—glass assisting the eye; the analogy is not perfect between this and ...
— Catharine • Nehemiah Adams
... An optical instrument, which serves for discovering and viewing distant objects, either directly by glasses, or by reflection. The invention of the telescope is one of the noblest and most useful of which modern ages can boast, since by means of this instrument ...
— A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery • Benziger Brothers
... promontory have gradually faded away, until nothing has remained but the blue sky above, and the deep blue water below. Hence it was termed by the geographers of old, Aprositus, or the Inaccessible; while modern navigators have called its very existence in question, pronouncing it a mere optical illusion, like the Fata Morgana of the Straits of Messina; or classing it with those unsubstantial regions known to mariners as Cape Flyaway, and the Coast ...
— Wolfert's Roost and Miscellanies • Washington Irving
... hypothesis therefore must be classified under Xenogenesis, rather than under Abiogenesis. Such as it was, I think it will appear, to those who will be just enough to remember that it was propounded before the birth of modern chemistry, and of the modern optical arts, to be a most ingenious and ...
— Discourses - Biological and Geological Essays • Thomas H. Huxley
... something of the man's intrinsic nature was revealed to me. His strength, of which we had heard much from travelers in his own land, lay in an almost scientific lack of concentration, backed up by a vocabulary of tremendous scope, and a condition of optical near-sightedness that enabled him to see but obscurely further than the end of his nose. These attributes gave him the power to discuss innumerable subjects coeternally, if not coherently, using his vocabulary with such skill that his meaning depended entirely upon the interpretation ...
— The Autobiography of Methuselah • John Kendrick Bangs
... the field was blurred, for a while, by the smoke from so much firing, which floated in thickening clouds over all the open spaces and the edges of the forest. It produced curious optical illusions. The French loomed through it, increased fourfold in numbers, every individual man magnified in size. He saw them lurid and gigantic, pulling the triggers of their rifles or muskets, or working the batteries. The cannon also grew from twelve-pounders or eighteen-pounders into guns three ...
— The Lords of the Wild - A Story of the Old New York Border • Joseph A. Altsheler
... to suggest that the scene is viewed through a telescope; or a mask with hair-line bars, which will suggest that you are looking through a window. We examined a script a short while ago in which a travelling salesman for an optical goods house amused himself in the interval before train time by watching through a pair of binoculars the street below and the buildings opposite his hotel window. The scene enacted in an office of a building not far away led him to believe that a murder ...
— Writing the Photoplay • J. Berg Esenwein and Arthur Leeds
... cramped position, and as he did so he caught a glimpse of a figure on the south face of the wall. But it was so fleeting he was not sure. If he had only brought his glasses with him he might have decided, but he was without them, and he concluded finally that it was merely an optical illusion. He and the Indian had the mountain walls to themselves, and the warrior could not have moved around ...
— The Great Sioux Trail - A Story of Mountain and Plain • Joseph Altsheler
... masters, it is beyond the scope of the present paper, and even now I can only hope to call your attention to one phase of this important subject. For a number of years I have been practically interested in the subject of the production of plane and curved surfaces particularly for optical purposes, i.e., in the production of such surfaces free if possible from all traces of error, and it will be pleasant to me if I shall be able to add to the interest of this association by giving you some of my own practical experience; and may I trust that it will be an incentive to all engaged ...
— Scientific American Supplement, No. 484, April 11, 1885 • Various
... order, till the smallest conceivable "vital unit" is reached in the universe of organic matter. To begin, therefore, with microscopic observation, at a point in the ephemeromorphic world where that optical instrument fails to give back any intelligible answer, and synthetically follow this chain of causation upward and outward to Dr. Tyndall's "fiery cloud of mist," in which it is assumed that all the diversified possibilities ...
— Life: Its True Genesis • R. W. Wright
... &c. (small quantity) 32; fragment &c. (small part) 51; powder &c. 330; point of a pin, mathematical point; minutiae &c. (unimportance) 643. micrometer; vernier; scale. microphotography, photomicrography, micrography[obs3]; photomicrograph, microphotograph; microscopy; microscope (optical instruments) 445.. V. be little &c. adj.; lie in a nutshell; become small &c. (decrease) 36, (contract) 195. Adj. little; small &c. (in quantity) 32; minute, diminutive, microscopic; microzoal; inconsiderable &c. (unimportant) ...
— Roget's Thesaurus • Peter Mark Roget
... my best to induce the poor viscount to listen to reason. I made him touch the mirrors and the iron tree and the branches and explained to him, by optical laws, all the luminous imagery by which we were surrounded and of which we need not allow ourselves to be the ...
— The Phantom of the Opera • Gaston Leroux
... telescope, and I noticed that Torribio also seemed very anxious to try the instrument. I told the boy to lend it to him. Our guide, seeing trees brought so close to him, could not at first account for this optical effect. I then directed the glass so that he could see the group of Indians, and I never saw any human face manifest such complete surprise. The Indian, who appeared perfectly charmed, could not long maintain his gravity. Every time he succeeded in ...
— Adventures of a Young Naturalist • Lucien Biart
... their author to the name of one of mankind's benefactors. In all parts of the world a safer landfall awaits the mariner. Two things must be said: and, first, that Thomas Stevenson was no mathematician. Natural shrewdness, a sentiment of optical laws, and a great intensity of consideration, led him to just conclusions; but to calculate the necessary formulae for the instruments he had conceived was often beyond him, and he must fall back on the help of others, notably on that ...
— The Works of Robert Louis Stevenson, Volume 9 • Robert Louis Stevenson
... button, bubble. point; atom &c (small quantity) 32; fragment &c (small part) 51; powder &c 330; point of a pin, mathematical point; minutiae &c (unimportance) 643. micrometer; vernier; scale. microphotography, photomicrography, micrography^; photomicrograph, microphotograph; microscopy; microscope (optical instruments) 445. V. be little &c adj.; lie in a nutshell; become small &c (decrease) 36, (contract) 195. Adj. little; small &c (in quantity) 32; minute, diminutive, microscopic; microzoal; inconsiderable &c (unimportant) 643; exiguous, puny, tiny, wee, petty, minikin^, ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget
... small white stone, not ten inches high, appeared to be several feet in height, at the distance of a quarter of an hour's ride. And so of the few other discernible objects on this wide expanse of optical delusion. Mirage was seen at times, but nothing pretty. We encamped late, midway through the vast plateau, when shadowy night began to establish her sable throne, in "rayless majesty," over this silent, sombre Desert. On such a horrid waste as this, when crime and ...
— Travels in the Great Desert of Sahara, in the Years of 1845 and 1846 • James Richardson
... which they were physically capable; in making of gauges, forging billets, making fuses, cartridges, bullets—"look what they can do," said a foreman, "ladies from homes where they sat about and were waited upon." They also made optical glass; drilled and tapped in the shipyards; renewed electric wires and fittings, wound armatures; lacquered guards for lamps and radiator fronts; repaired junction and section boxes, fire control instruments, automatic searchlights. ...
— A Straight Deal - or The Ancient Grudge • Owen Wister
... complete in its harmony of parts, is perfect in its mathematical proportions, and beautiful in its geometrical designs. And yet each creation, each form, and each combination of forms, are produced by the same little pieces of glass; and all of them, in reality, are optical illusions; i.e., natural phenomena, which deceive the physical senses. So ...
— The Light of Egypt, Volume II • Henry O. Wagner/Belle M. Wagner/Thomas H. Burgoyne
... perhaps even more friends, and it is supported by the remarkable discoveries of the lamented Moseley. But we must not take such theories too seriously. As Kayser has said, any true theory of the make-up of the atoms must assume an absolutely full and perfect knowledge of all electrical and optical processes, and is therefore beyond our dreams. Or as Professor Planck said in his Columbia lectures, we are not entitled to hope that we shall ever be able to represent truly through any physical formulae the internal structure ...
— Q. E. D., or New Light on the Doctrine of Creation • George McCready Price
... estimate based upon this belief cannot agree with the facts. Again, the corpuscular theory of light, namely, that the physical cause of light is a stream of fine particles projected in straight lines from the luminous object, though it seemed adequate to the explanation of many optical phenomena, could not be made to agree with the facts of interference ...
— Logic - Deductive and Inductive • Carveth Read
... illness. There are four ways of treating such stories—the first is to deny their truth, which is, to say the least, not only grossly uncharitable, but an absurd and impertinent caprice adopted in order to reject unpleasant evidence; the second is to account for them by an optical delusion, accidentally synchronising with the event, which seems to me a most monstrous ignoring of the law of chances; a third is to account for them by the existence of some exquisite faculty, (existing in different degrees of intensity, and in some people not existing ...
— Julian Home • Dean Frederic W. Farrar
... logically, so there was nothing the matter with the brain. It was only my eyes that had been deceived; they had had a vision, one of those visions which lead simple folk to believe in miracles. It was a nervous seizure of the optical apparatus, nothing more; the eyes were rather ...
— Maupassant Original Short Stories (180), Complete • Guy de Maupassant
... believe that"—under variation proceeding long enough, generation multiplying the better variations times enough, and natural selection securing the improvements—"a living optical instrument might be thus formed as superior to one of glass as the works of the Creator are ...
— Atlantic Monthly, Vol. VI.,October, 1860.—No. XXXVI. - A Magazine Of Literature, Art, And Politics • Various
... phantoms. Like a picture from the ghost world, it flickered for a few minutes like heat lightning, then disappeared, leaving the night as dark as before. It was a night mirage, and something more than an optical illusion. It was a rare thing on the plain. The Kid knew that it meant something. That glow was the reflection in the sky of a camp fire! Those shadows were men! The ...
— Kid Wolf of Texas - A Western Story • Ward M. Stevens
... afford. There are a great many excellent makes of lenses on the market and even the stock types that are supplied with moderate-priced cameras are of very good quality. The two distinct types of lenses are the "rapid rectilinear" and the "anastigmatic," which names refer to their optical properties in distributing the light. For our purpose all we need to know is that the higher price we pay the better our lenses will be, and in addition to this the further fact that the best kind of results can be obtained by any lens provided ...
— Outdoor Sports and Games • Claude H. Miller
... falsehood unerringly, that, in fact, she should follow the example of the scientist, who takes account of every minute particle of matter, every elementary and embryonic form of life, but eliminates all optical delusions, all the confusion which impurities and foreign substances might introduce into the search for truth. To achieve such an attitude long practise is necessary, and a wide observation of life under the guidance of the ...
— Spontaneous Activity in Education • Maria Montessori
... just then. While congratulating myself on having escaped death on the roadside, I opened my eyes to behold a tray brought to my bedside with a variety of refreshments. Coffee! Bread! Loaf-sugar! Preserves! I opened my mouth to make an exclamation at the singular optical illusion, but wisely forbore speaking, and shut it with some ...
— A Confederate Girl's Diary • Sarah Morgan Dawson
... S. Weir Mitchell's attention was called "to the marked relief of headache, insomnia, and other reflex symptoms following the correction of optical defects by glasses." In 1874 and 1876 he wrote two articles that "impressed upon the general profession the grave significance of eye strain." Since that time, "in Philadelphia at least, no study of the rebellious cause of headache or of the obscure nervous ...
— Civics and Health • William H. Allen
... was the lock with the key on the inside. Without being a spiritualist, Jean felt that nobody but spirits could come out of a room leaving the doors locked and the keys on the inside. But for that lock, he might have even set it down to optical illusion and have persuaded himself that perhaps she had really never entered that ...
— Mlle. Fouchette - A Novel of French Life • Charles Theodore Murray
... How strong the feeling is my boatman gave me proof within ten minutes after his failure with the cotton-mouth. He had pulled out into the middle of the river, when I noticed a beautiful snake, short and rather stout, lying coiled on the water. Whether it was an optical illusion I cannot say, but it seemed to me that the creature lay entirely above the surface,—as if it had been an inflated skin rather than a live snake. We passed close by it, but it made no offer to move, only darting out its tongue as the boat slipped past. I spoke ...
— A Florida Sketch-Book • Bradford Torrey
... I hadn't realized I was approaching Biddy Maloney's cottage until I saw her coming out of it and I certainly hadn't thought of Biddy Maloney until my eye fell upon her. And it's a funny optical illusion that deceives one into seeing an old lady opening gates, crossing railways and ...
— Driftwood Spars - The Stories of a Man, a Boy, a Woman, and Certain Other People Who - Strangely Met Upon the Sea of Life • Percival Christopher Wren
... clear for actual work without further experiment. I have not been able by any arrangement of reflected light to get power enough to print negatives of the ordinary density, and have only succeeded by causing the light to be equally dispersed over the negative by a lens as used in the optical lantern, but the arrangements required are somewhat different to that of ...
— Scientific American Supplement, No. 586, March 26, 1887 • Various
... the Gramophone.—The gramophone, by virtue of its table revolving at a controllable speed, comes in useful for a series of optical experiments made with coloured discs ...
— Things To Make • Archibald Williams
... equal interest and absorption at a chorus girl or at a man painting a liver pill sign. They will form as deep a cordon around a man with a club-foot as they will around a balked automobile. They have the furor rubberendi. They are optical gluttons, feasting and fattening on the misfortunes of their fellow beings. They gloat and pore and glare and squint and stare with their fishy eyes like goggle-eyed perch at the ...
— The Voice of the City • O. Henry
... industry, secured and classified over five hundred distinct species of fishes from this very division of the Indian Ocean; many of which are characterized by colors as gay and various as those of tropical birds and flowers. Mirage played us strange tricks, in the way of optical delusion, in these regions. We seemed constantly to be approaching land that was never reached, and which, after assuming the undulating shore-lines of a well-defined coast, at the moment when we should ...
— Due West - or Round the World in Ten Months • Maturin Murray Ballou
... Spherical vapor and atmospheric space give but a faint idea of its range. We find it a leading science in Physics, and having intimate relations with heat, light, electricity, magnetism, winds, water, vegetation, geological changes, optical effects, pneumatics, geography,—and with climate, controlling the pursuits and affecting the character of the human race. It is so intimately blended, indeed, with the other matters here named, as scarcely to have any positive boundary of its own; and its ...
— Atlantic Monthly Vol. 6, No. 33, July, 1860 • Various
... and uninitiated in the mystery of the arts that were practised upon them. Such was no doubt the case with the speaking heads and statues, which were sometimes exhibited in the ancient oracles. Such was the case with certain optical delusions, which were practised on the unsuspecting, and were contrived to produce on them the effect of supernatural revelations. Such is the story of Bel and the Dragon in the book of Apocrypha, where the priests daily placed before the idol twelve measures of flour, and forty sheep, ...
— Lives of the Necromancers • William Godwin
... horses. On every hand might be seen the optical illusions of the plain. Beautiful lakes, placid and blue, forests and white-capped mountains, invited the horsemen to turn aside and rest. But the allurement of the mirage was an old story, and holding the objects in view, they jogged on, halting from ...
— Wells Brothers • Andy Adams
... in the launching of an optical-glass industry; this trade has also been in Teutonic hands. I could cite many other instances, but these will show the new spirit of British commercial enterprise ...
— The War After the War • Isaac Frederick Marcosson
... direction to be heightened, and some of the children to be myopic at an earlier age or in a higher degree than their parents. Thirdly, squinting is a familiar example of hereditary transmission: it is frequently a result of such optical defects as have been above mentioned; but the more primary and uncomplicated forms of it are also sometimes in a marked degree transmitted in a family. Fourthly, CATARACT, or opacity of the crystalline lens, is commonly observed ...
— The Variation of Animals and Plants under Domestication - Volume I • Charles Darwin
... of the average individual. Longer gastroscopes are used, when necessary, to explore a ptosed stomach. Various lens-system gastroscopes have been devised, which afford an excellent view of the walls of the air-inflated stomach. The optical system, however, interferes with the insertion of instruments, so that the open-tube gastroscope is required for the removal of gastric foreign bodies, the palpation of, or sponging secretions from, gastric lesions. The open-tube gastroscope may be closed ...
— Bronchoscopy and Esophagoscopy - A Manual of Peroral Endoscopy and Laryngeal Surgery • Chevalier Jackson
... the person. The familiar experiment of the person crossing his first two fingers, and placing them on a small object, such as a pea or the top of a lead-pencil, shows us how "mixed" the sense of feeling becomes at times. The many familiar instances of optical delusions show us that even our sharp eyes may deceive us—every conjuror knows how easy it is to deceive the eye by ...
— Clairvoyance and Occult Powers • Swami Panchadasi
... gobbling of the great animals in the river below them was so prodigious they could not grasp it. It seemed it must be optical illusion. In a few moments, the dead had been eaten, swallowed whole, and fights were progressing between ...
— Astounding Stories of Super-Science, June, 1930 • Various
... thousand optical illusions, a thousand aberrations of judgment, a thousand deviations, in which his thought ...
— Notre-Dame de Paris - The Hunchback of Notre Dame • Victor Hugo
... it is certain that, although not an intellectual woman, she was not without some taste for pursuits in consonance with those of Goethe. It was for her that he wrote the "Metamorphoses of Plants," and in her company he pursued his optical and botanical researches. Had she shown no comprehension of these things, assuredly Goethe would never have persisted in instructing her in them. It was for her, too, that he wrote the "Roman Elegies," which shows that he did not esteem her a ...
— Home Life of Great Authors • Hattie Tyng Griswold
... exclaimed, "it is wonderful! I have succeeded! I have changed the principles of a lifetime, made the most brilliant optical experiment which any man of science has ever ventured to essay, with the result—well, you shall see. I have wired to the Admiralty, wired for more work-people. Captain Chalmers, is it not?" he went on. "You must tell your men to ...
— The Kingdom of the Blind • E. Phillips Oppenheim
... are well known: the Scriptores Logarithmici[468] is a set of valuable reprints, mixed {207} with much which might better have entered into another collection. It is not so well known that there is a volume of optical reprints, Scriptores Optici, London, 1823, 4to, edited for the veteran of ninety-two by Mr. Babbage[469] at twenty-nine. This excellent volume contains James Gregory, Des Cartes, Halley, Barrow, and the optical writings ...
— A Budget of Paradoxes, Volume I (of II) • Augustus De Morgan
... incapable of deformation, in which the material is utilised in the best conditions of resistance. For a standard with ends has been substituted a standard with marks, which permits much more precise definition and can be employed in optical processes of observation alone; that is, in processes which can produce in it no deformation and no alteration. Moreover, the marks are traced on the plane of the neutral fibres[2] exposed, and the invariability of their distance apart is thus assured, even when a change ...
— The New Physics and Its Evolution • Lucien Poincare
... instrument which he called a Zoopraxiscope for the optical projection of his zoetrope photographs. The succession of positives was arranged in proper order upon a glass disk about 18 inches in diameter near its circumference. This disk was mounted conveniently for rapid revolution so that each picture would pass in front of the ...
— Marvels of Modern Science • Paul Severing
... do this by supposing that the world, including God, consists of nothing but 'idea'-creating minds, operating like the human mind as man himself perceives it. His world picture, based (as is well known) entirely on optical experiences, is the perfect example of a philosophy contrived by the ...
— Man or Matter • Ernst Lehrs
... in a condition of astonishment that engendered, almost, a doubt of my eyes; for if my sight was unimpaired and myself not subject to optical or mental delusion, neither boy nor dog nor bird nor cat, nor any other object of this visible world, had entered that opened door. Was my "finest" house, then, a place of call for wandering ghosts, who came home to roost at four ...
— Beasley's Christmas Party • Booth Tarkington
... stunted trees, at times appeared suspended in the air, and magnified far beyond natural size. High up in the air could be seen the reflection of animals that were many miles distant from the place they appeared to be occupying. These optical illusions were the cause of much annoyance to the thirsty travellers,— especially to their animals, unable to understand them. Excited with the hope of quenching their thirst, they were with much difficulty prevented ...
— The Giraffe Hunters • Mayne Reid
... with huge strides, in a line parallel to their own course, the opposite ridge of a mountain, when divided from it by a narrow glen; and indeed the fact of the apparition is so generally admitted, that modern scepticism has only found refuge by ascribing it to optical ...
— The Antiquary, Complete • Sir Walter Scott
... an optical illusion," said the young captain. "Although the swell seems to carry the waves landward, it does not really move at all. It is mere undulating molecular motion, nothing more. Throw a piece of wood overboard and you will see that it will remain quite stationary except ...
— In Search of the Castaways • Jules Verne
... meteorology have not, up to the present day, classified with sufficient regularity the divers optical phenomena of the air. Some of these phenomena have, however, been seen but rarely, and have not been sufficiently studied to admit of their classification. We have examined the common phenomenon of the rainbow and we have seen that it is due to the ...
— Young Folks' Library, Volume XI (of 20) - Wonders of Earth, Sea and Sky • Various
... it, and behold! instead of twinkling points of light, he saw a round mass—a world—moving through space, and not a scintillating object with five points. The twinkling spikes, or points, were merely an optical illusion of the ...
— Little Journeys to the Homes of the Great - Volume 12 - Little Journeys to the Homes of Great Scientists • Elbert Hubbard
... all, we seem to be drifting up-stream, until on glancing at the shore the hills appear to be swiftly going down and the willow fringes up,—until the sight makes us dizzy, and we are content to be at quits with these optical delusions. ...
— Afloat on the Ohio - An Historical Pilgrimage of a Thousand Miles in a Skiff, from Redstone to Cairo • Reuben Gold Thwaites
... that he could establish was a Canterbury gallop with the hind legs, in which those more forward assisted for doubtful moments, though generally content to maintain a loping trot. Perhaps the rapidity of the changes from one of these paces to the other created an optical illusion, which might thus magnify the powers of the beast; for it is certain that Heyward, who possessed a true eye for the merits of a horse, was unable, with his utmost ingenuity, to decide by what sort ...
— The Last of the Mohicans • James Fenimore Cooper
... the Channel Tunnel; A Town of Dwarfs; Whooping Cough; British Association Notes; An English Crop; Influence of White Colors; An Involved Accident; An Old Aqueduct System; Galvanism Cannot Restore Exhausted Vitality; Curious Optical Experiments; Ice Machines; American Antiquities; Protection from Lightning; Steam Machinery and Privateering; Man and Animals; The Limbs of Whales; Our Educational Standing; Surface Markings; The Oldest Stone Tools; ...
— The Galaxy - Vol. 23, No. 1 • Various
... in making chemical glassware, since it resists the action of reagents better than the softer sodium glass. If lead oxide is substituted for the whole or a part of the lime, the glass is very soft, but has a high index of refraction and is valuable for making optical instruments and artificial jewels. ...
— An Elementary Study of Chemistry • William McPherson
... generically called Las Canadas; but, whilst the volcanic ridge of the Isle of Wood runs in a latitudinal line, the Junonian Cordillera has a whorl, the ancient as well as the modern seat of eruption. Around the island appeared to be a rim, as if the sea-horizon formed a raised saucer—a common optical delusion at ...
— To the Gold Coast for Gold - A Personal Narrative in Two Volumes.—Vol. I • Richard F. Burton
... are rendered more so by the variations of the atmosphere, of the eye, and of the glass. But after these are all accounted for, there is still a real difference. Two stars of the class known as double stars, that is, so little separated that considerable optical power is necessary to divide them, show these different tints very nicely in the same field ...
— Maria Mitchell: Life, Letters, and Journals • Maria Mitchell
... to keep the object-glass upon the black spot, and she had a great deal of trouble in the matter of focusing, pulling out and pushing in the smaller cylinder in a manner which showed that she was not accustomed to the use of this optical instrument. ...
— The Captain's Toll-Gate • Frank R. Stockton
... see him agoing in the direction of the billiard-room, saving your presence, sir,' says Wickersmith to me." Adrian pantomimed the supposed deference of the butler. Then, loftily, "But, 'Shoo' says I. 'An optical delusion, my excellent Wick. A Christian man would be incapable of such a villainy. The billiard-room, that darksome cavern, on a heaven-sent day like this? Shucks,' says I. Yet"—his attitude became exhortative—"see how mighty is truth, see how she prevails, see how the scoffer ...
— The Lady Paramount • Henry Harland
... member of a committee, to which Sir John Herschel and Mr. Dollond also belonged, appointed by the Royal Society to examine, and if possible improve, the manufacture of glass for optical purposes. Their experiments continued till 1829, when the account of them constituted the subject of a 'Bakerian Lecture.' This lectureship, founded in 1774 by Henry Baker, Esq., of the Strand, London, provides that every year a lecture shall be given ...
— Faraday As A Discoverer • John Tyndall
... has thus arisen appears to be a kind of metaphysic narrowed to the point of view of the individual mind, through which, as through some new optical instrument limiting the sphere of vision, the interior of thought and sensation is examined. But the individual mind in the abstract, as distinct from the mind of a particular individual and separated from the environment of circumstances, is a fiction only. Yet facts which are partly ...
— Theaetetus • Plato
... would be intolerably hideous if you did not look through their spectacles. With infinite pains you have turned away your eyes from the external light. It is with relief, not regret, that you discover that the sun shines, and that the world is beautiful without the help of these optical devices which you had been taught to regard ...
— Prose Masterpieces from Modern Essayists • James Anthony Froude, Edward A. Freeman, William Ewart Gladstone, John Henry Newman and Leslie Steph
... two convex lenses. Whether this be true or not, it is certain that he applied the micrometer to the telescope, and was the first to use telescopic sights, by means of which he was able to fix the optical axis of his telescope, and ascertain by observation the apparent ...
— The Astronomy of Milton's 'Paradise Lost' • Thomas Orchard
... experiments of Mr. Dutrochet day after day, and scrupulously following his directions, we have, in the presence of our results, that were exactly identical with his, almost been tempted to believe ourself to be the victim of some occult power, or at least of some optical illusion, the true cause of which remained a mystery to us. Finally, after many fruitless attempts to find a key to the enigma that engaged our attention, the light finally dawned upon us, and then ...
— Scientific American Supplement, No. 401, September 8, 1883 • Various
... not infallible, are our only guides in their sphere; so our perceptive faculties are good and safe, but not perfect, guides. These perceptive faculties, in a measure, help and correct each other's impressions; and through optical illusions, expectant attention, dreams, etc., we learn that their dictates must be carefully watched and verified. The latest voice of science is that all the sensation produced by physical stimulants can also be produced by the imagination; ...
— To Infidelity and Back • Henry F. Lutz
... features, that he absolutely seemed to be glaring and grinning on me like a fiend, in the one instant of its duration. For the moment, it required all my knowledge of the settled calmness of his countenance, to convince me that my eyes must have been only dazzled by an optical illusion produced ...
— Basil • Wilkie Collins
... growing down to the water. Here the reflections were so brilliant that the dividing line between shore and water was difficult for the untrained eye to make out. The boys seemed to be gazing upon an optical illusion. From the water's edge the mountains rose sheer to a great height, their distant peaks capped with snow glistening in the morning sunlight, while glacial streams flashed over the open spaces on ...
— The Pony Rider Boys in Alaska - The Gold Diggers of Taku Pass • Frank Gee Patchin
... general way, of the mechanism for accomplishing the result, was made many years before the instantaneous photograph became possible. While the first motion picture was not actually produced until the summer of 1889, its real birth was almost a century earlier, when Plateau, in France, constructed an optical toy, to which the impressive name of "Phenakistoscope" was applied, for producing an illusion of motion. This toy in turn was the forerunner of the Zoetrope, or so-called "Wheel of Life," which was introduced into this country about the year 1845. These ...
— Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin
... great distinctness, but it will not present them in their natural size, for it can not change the angle of vision. The villages upon the table-land were apparently pigmy villages, inhabited by pigmy men and pigmy women, surrounded with pigmy cattle, and garrisoned by pigmy soldiery. It is, by an optical illusion, Liliput in real life. Had the English satirist placed himself where we now stood, he would have more than realized the picture which his fancy painted. He might have seen the marshaled hosts of Liliput ...
— Mexico and its Religion • Robert A. Wilson
... of the heavenly bodies in the speculations of the old Greek thinkers. Galilei (1564-1642) enlarged the Copernican system with the aid of the telescope; and the telescope was an outcome of the new study of optics which had been inspired in Roger Bacon and other medieval scholars by the optical works, directly founded on the Greek, of the Spanish Moors. Giordano Bruno still further enlarged the system; he pictured the universe boldly as an infinite ocean of liquid ether, in which the stars, with retinues of inhabited planets, floated ...
— The Story of Evolution • Joseph McCabe |
