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Focus   Listen
noun
Focus  n.  (pl. E. focuses, L. foci)  
1.
(Opt.) A point in which the rays of light meet, after being reflected or refracted, and at which the image is formed; as, the focus of a lens or mirror.
2.
(Geom.) A point so related to a conic section and certain straight line called the directrix that the ratio of the distance between any point of the curve and the focus to the distance of the same point from the directrix is constant. Note: Thus, in the ellipse FGHKLM, A is the focus and CD the directrix, when the ratios FA:FE, GA:GD, MA:MC, etc., are all equal. So in the hyperbola, A is the focus and CD the directrix when the ratio HA:HK is constant for all points of the curve; and in the parabola, A is the focus and CD the directrix when the ratio BA:BC is constant. In the ellipse this ratio is less than unity, in the parabola equal to unity, and in the hyperbola greater than unity. The ellipse and hyperbola have each two foci, and two corresponding directrixes, and the parabola has one focus and one directrix. In the ellipse the sum of the two lines from any point of the curve to the two foci is constant; that is: AG + GB = AH + HB; and in the hyperbola the difference of the corresponding lines is constant. The diameter which passes through the foci of the ellipse is the major axis. The diameter which being produced passes through the foci of the hyperbola is the transverse axis. The middle point of the major or the transverse axis is the center of the curve. Certain other curves, as the lemniscate and the Cartesian ovals, have points called foci, possessing properties similar to those of the foci of conic sections. In an ellipse, rays of light coming from one focus, and reflected from the curve, proceed in lines directed toward the other; in an hyperbola, in lines directed from the other; in a parabola, rays from the focus, after reflection at the curve, proceed in lines parallel to the axis. Thus rays from A in the ellipse are reflected to B; rays from A in the hyperbola are reflected toward L and M away from B.
3.
A central point; a point of concentration.
Aplanatic focus. (Opt.) See under Aplanatic.
Conjugate focus (Opt.), the focus for rays which have a sensible divergence, as from a near object; so called because the positions of the object and its image are interchangeable.
Focus tube (Phys.), a vacuum tube for Roentgen rays in which the cathode rays are focused upon the anticathode, for intensifying the effect.
Principal focus, or Solar focus (Opt.), the focus for parallel rays.






Collaborative International Dictionary of English 0.48








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"Focus" Quotes from Famous Books



... is no instance of such a house being as big as the picture in memory and imagination call for. Shrunk how? Why, to its correct dimensions: the house hasn't altered; this is the first time it has been in focus. ...
— Innocents abroad • Mark Twain

... complete failure. For this I had only my own smattering and desultory habit of mind to blame and also a vivid troublesome sense of the beauty of it all. The charm of the prismatic fringe round the edges made juggling with the lens too tempting, and a clear persistent focus was never attained. Considered (oddly enough) by my mates as the pattern of a diligent scholar, I was in reality as idle as the idlest of them, which is saying much; though I confess that my dilettantism was ...
— Plum Pudding - Of Divers Ingredients, Discreetly Blended & Seasoned • Christopher Morley

... chemistry and astronomy, all measurements being applied to the heavenly bodies. Their main service was found in accurate records of data. Kepler maintained "that every planet moved in an ellipse of which the sun occupied one focus." He also held "that the square of the periodic time of any planet is proportional to the cube of its mean distance from the sun," and "that the area swept by the radius vector from the planet to the sun is proportional to the time."[4] He was ...
— History of Human Society • Frank W. Blackmar

... Public Works Department) and I have to make an important measurement in connexion with the Apothegm of the Bilateral which runs to-night precisely through this spot. My fingers now mark exactly the concentric of the secondary focus whence the Radius Vector should be drawn, but I find that (like a fool) I have left my Double Refractor in the cafe hard by. I dare not go for fear of losing the place I have marked; yet I can get no ...
— The Path to Rome • Hilaire Belloc

... its title and function, no colours could paint to the imagination anything more venerable. In that light the mind of an inquirer, subdued by such an awful image as that of the virtue and wisdom of a whole people collected into one focus, would pause and hesitate in condemning things even of the very worst aspect. Instead of blameable, they would appear only mysterious. But no name, no power, no function, no artificial institution whatsoever, can make the men of whom any system of authority is composed, any other ...
— Selections from the Speeches and Writings of Edmund Burke. • Edmund Burke

... seventeenth century, grew in numerical and in real strength, until, in its latter part, the "Royal Society for the Improvement of Natural Knowledge" had already become famous, and had acquired a claim upon the veneration of Englishmen, which it has ever since retained, as the principal focus of scientific activity in our islands, and the chief champion of the cause ...
— Autobiography and Selected Essays • Thomas Henry Huxley

... Ramaka, or Rakama, whose name appears on his monuments. But compromise with treason has rarely a tranquillizing effect; and Pinetem's concession to the prejudices which formed the stock-in-trade of his opponents only exasperated them and urged them to greater efforts. The focus of the conspiracy passed from the Oasis to Thebes, which had grown disaffected because Pinetem had removed the seat of government to Tanis in the Delta, which was the birthplace of his grandfather, Herhor. So threatening had become the general aspect of affairs, that the king thought it ...
— Ancient Egypt • George Rawlinson

... girl, had fought with the mammoth waves as with inveterate beasts seeking to stifle her in icy embraces. A mere atom plunged in their depths as in cavernous and boundless darkness, she had struggled with an ocean the whole of the focus of which were leagued against her, possessed all the time with a foolish and trivial remembrance of child hood, the vision of a little gray kitten, with a weight about its neck, striving to beat its way up through clear waters, sending out ...
— In the Roaring Fifties • Edward Dyson

... the king was the vice-king. Yet they had seen their beloved viceroy, Iturrigaray, deposed by a conspiracy of Spanish shop-keepers, which had organized itself in that focus of Mexican trade, the Parian. All this was bewildering to the nation. All New Spain was astonished to see a power sufficiently potent to arrest the vice-king emanate from such a quarter. And not only had they witnessed this, but they had ...
— Mexico and its Religion • Robert A. Wilson

... Little Sister, and an hour later the same child in a cemetery three miles in the country where I used mounted butterflies from my cases, and potted plants carried from my conservatory, for a graveyard scene. The time was early November, but God granted sunshine that day, and short focus blurred the background. At four o'clock I was at the schoolhouse, and in the best-lighted room with five or six models, I was working on the spelling bee scenes. By six I was in the darkroom developing and drying these plates, every one of which was good enough to use. ...
— At the Foot of the Rainbow • Gene Stratton-Porter

... pour out abuse. He was working himself up to a passion that would justify murder. The weapon in his hand swept wildly back and forth. Presently it would focus down to a deadly concentration in which all motion ...
— Man Size • William MacLeod Raine

... the half-length of a youthful warrior, clad in steel, save the beautifully-formed head, which was covered only by his own luxuriant raven curls. In a better light it could not have been placed, particularly in the evening; the rays, condensed and softened, seemed to gather up their power into one focus, and throw such an almost supernatural glow on the half face, give such an extraordinary appearance of life to the whole figure, that a casual visitant to that chamber might well fancy it was no picture ...
— The Days of Bruce Vol 1 - A Story from Scottish History • Grace Aguilar

... was in a trance. Her eyes were steadily regarding something quite beyond their focus. Her lips were parted, and her face was lighted by the kindling furor of the explorer, the ardent, stirring disquiet of the adventurer. Suddenly she clasped her ...
— Whirligigs • O. Henry

... as this fact was gathered by the redskins. The experiments had been satisfactory and they were prepared to venture upon the more dangerous and decisive one—the one which they intended should bring matters to a focus. ...
— The Cave in the Mountain • Lieut. R. H. Jayne

... length, by thought and action rather than by time. "A counted number of pulses only," says Pater, "is given to us of a variegated, aromatic, life. How may we see in them all that is to be seen by the finest senses? How can we pass most swiftly from point to point, and be present always at the focus where the greatest number of vital forces unite in their purest energy? To burn always with this hard gem-like flame, to maintain this ecstasy, is success in life. Failure is to form habits, for habit is relation to a stereotyped world:... while all melts under our feet, we may well catch ...
— The Pleasures of Life • Sir John Lubbock

... No longer will you see the antichthon of Plato, the focus of Philolaues, the spheres of Aristotle, or the seven heavens of the Jews with the great waters above the ...
— The Temptation of St. Antony - or A Revelation of the Soul • Gustave Flaubert

... justify this encouragement of smiling rather than tearful children; I do not wish to pay for tears anywhere but upon the stage; but I am prepared to deal largely in the opposite commodity. A happy man or woman is a better thing to find than a five-pound note. He or she is a radiating focus of goodwill; and their entrance into a room is as though another candle had been lighted. We need not care whether they could prove the forty-seventh proposition; they do a better thing than that, they practically demonstrate the great Theorem of the Liveableness of Life. ...
— Virginibus Puerisque • Robert Louis Stevenson

... or, if thou'rt she, Ah, then, from Thee Let Bride and Bridegroom learn what kisses be! In what veil'd hymn Or mystic dance Would he that were thy Priest advance Thine earthly praise, thy glory limn? Say, should the feet that feel thy thought In double-center'd circuit run, In that compulsive focus, Nought, In this a furnace like the sun; And might some note of thy renown And high behest Thus in enigma be expressed: 'There lies the crown Which all thy longing cures. Refuse it, Mortal, that it may be yours! It is a Spirit, though it seems red gold; And ...
— The Unknown Eros • Coventry Patmore

... than colour, diactinic lenses, multiplication of impressions, or anything else. And when it is remembered that the law of an ordinary convex lens is, the farther the object from the lens the nearer the focus, and, vice versa, the nearer the object the farther the focus, it becomes evident that by such an instrument distant objects must be made to appear near, and near objects distant, and ...
— Notes and Queries, Number 192, July 2, 1853 • Various

... prompts such random desires. Feeling is diffused over the whole surface of the body; but light is focalized in the eye; sound in the ear. The organization of a sense or a pleasure seems diluted and imperfect, unless it is gathered by some machinery into one focus, or local centre. And thus it is that a general state of pleasurable feeling sometimes seems too superficially diffused, and one has a craving to intensify or brighten it by concentration through some sufficient stimulant. I, for my part, have tried every thing in this world except 'bang,' ...
— Narrative And Miscellaneous Papers • Thomas De Quincey

... New England gave its distinctive character to the American colonies, and finally to the nation. New England influences still breathe from the Atlantic to the Pacific, and from the great lakes to Mexico; and Boston, still the focus of the New England idea, ...
— The Bay State Monthly - Volume 2, Issue 3, December, 1884 • Various

... assured by Count von Beust, who travelled in Bavaria last year, that their progress among the lower classes is astonishing, considering the short period these emissaries have laboured. To any one looking on the map of the Continent, and acquainted with the spirit of our times, this impious focus of illumination ...
— The Memoirs of Napoleon Bonaparte • Bourrienne, Constant, and Stewarton

... sand-hills of Cape Cod over our larboard quarter, and before us the wide waters of Massachusetts Bay, with here and there a sail gliding over its smooth surface. As we drew in toward the mouth of the harbor, as toward a focus, the vessels began to multiply, until the bay seemed alive with sails gliding about in all directions; some on the wind, and others before it, as they were bound to or from the emporium of trade and centre of the bay. It was a stirring sight for us, who had been months ...
— Two Years Before the Mast • Richard Henry Dana

... roused and never crippled, carried the universal civilization to its height. Nature herself set the boundaries of the river and the mountain to the confines of the several states—the smallness of each concentrated power into a focus—the number of all heightened emulation to a fever. The Greek cities had therefore, above all other nations, the advantage of a perpetual collision of mind—a perpetual intercourse with numerous neighbours, with ...
— Athens: Its Rise and Fall, Complete • Edward Bulwer-Lytton

... characteristics; it has contemplated the radiant image of the supreme beauty—still it is not philosophy which has restored for humanity the idea of God. Its lights mingled with darkness remained widely scattered, and without any focus powerful enough to give them strength for enlightening the world. To seek God, and consequently to know Him already in a certain measure; but to remain always before the altar of a God glimpsed only by an elite ...
— The Heavenly Father - Lectures on Modern Atheism • Ernest Naville

... events of life is a constant theme of speculation among the pragmatics; no petty detail is overlooked in the possibility of its portentous consequences. Walter Shandy's hyperbolic philosophy turned about such a focus, the exaltation of insignificant trifles into mainsprings of action. Shandy bristles with ...
— Laurence Sterne in Germany • Harvey Waterman Thayer

... unemployment and limit dependence on foreign countries, the government is encouraging the replacement of expatriate workers with local people, i.e., the process of Omanization. Training in information technology, business management, and English support this objective. Industrial development plans focus on gas resources. ...
— The 2004 CIA World Factbook • United States. Central Intelligence Agency

... Anthracite Creek, in southwestern Colorado, and at the Placer Mountains, near Santa Fe, New Mexico, Cretaceous lignites into anthracite; those from Queen Charlotte's Island and southwestern Colorado are as bright, hard, and valuable as any from Pennsylvania. At a little distance from the focus of volcanic action, the Cretaceous coals of southwestern Colorado have been made bituminous and coking, while at the Placer Mountains the same stratum may be seen in ...
— Scientific American Supplement, No. 362, December 9, 1882 • Various

... but for an hour. The wise man will be he who quickest lights his candle; the wisest he who never lets it out. Tomorrow, the next moment, he, a poor, darkened, blurred soul, may need it again to focus the Image better, to take a mote off the lens, to clear the mirror from a breath with which the world has ...
— Addresses • Henry Drummond

... diminutive landscape dimly lighted up, the wonder is whether it is all artificial, or whether one is not oneself the victim of some morbid illusion; and if it is not indeed a real country view seen through a distorted vision out of focus, or through the ...
— Madame Chrysantheme • Pierre Loti

... greatest refinement of design and execution, and the aid of sculpture, both in relief and in the round, was invoked to give splendor and significance to the monument. The statue of the deity was the focus of internal interest, while externally, groups of statues representing the Olympian deities or the mythical exploits of gods, demigods, and heroes, adorned the gables. Relief carvings in the friezes and metopes commemorated the favorite national ...
— A Text-Book of the History of Architecture - Seventh Edition, revised • Alfred D. F. Hamlin

... books burned in public by order of the state, his library locked up by the Jesuits, and himself exiled by public clamor. For seventeen years he works calmly upon the demonstration of the great principles that planets revolve in ellipses, with the sun at one focus; that a line connecting the center of the earth with the center of the sun passes over equal spaces in equal times, and that the squares of the times of revolution of the planets above the sun are proportioned to the cubes by their mean distances from the sun. This boy with no chance became ...
— Pushing to the Front • Orison Swett Marden

... outside, and using her tongue and her hands freely upon the men, as so many "brutes"; it is a crowd annular, compact and mobile; a crowd centripetal, having its eyes and its heads all bent downward and inward, to one common focus. ...
— Journeys Through Bookland, Vol. 6 • Charles H. Sylvester

... come in front of the bench where Father Denfili told his beads. The prelate turned to the old General of San Ambrogio with deference. "Is it not so, Father?" he asked. But Father Denfili raised his sightless eyes as if he sought to focus them upon the group before him. Father Ramoni, laughingly dissenting, suddenly felt his joy congealing into a cold fear that bound his heart. He turned away angrily, then recovered himself in time. Father Denfili was no longer on the bench ...
— The City and the World and Other Stories • Francis Clement Kelley

... public speaking, the controversial and illustrated press, the circulation of pamphlets and handbills, parades and mass-meetings, and the generous use of placards, cartoons, and other devices designed to attract and focus attention. Plans are laid, arguments are formulated, and (p. 095) leadership in public appeal is assumed by the members of the Government, led by the premier, and, on the other side, by the men who are the recognized leaders ...
— The Governments of Europe • Frederic Austin Ogg

... only on money-getting. And yet the Clarendon Press makes money, and the University can depend upon it for handsome subsidies. It may well depend upon it for much more. As the Bank of England—to which in its system of government it may be likened—is the focus of all the other banks, private or joint-stock, in the kingdom, and the treasure-house, not only of the nation's gold, but of its commercial honor, so the Clarendon Press—traditionally careful in its selections and munificent in its rewards—might ...
— Adventures in Criticism • Sir Arthur Thomas Quiller-Couch

... as he could focus his sight upon them, these "shadows," without any light to cast them, moved in distorted guise there on the deck with a motion that was somehow rhythmical—a great movement as of ...
— The Centaur • Algernon Blackwood

... behind the big tree across the street. I'm sure he's watching the Foger house, and when Andy came to the door that time, I happened to look around and saw that man focus a pair of opera glasses on him ...
— Tom Swift and his Great Searchlight • Victor Appleton

... through his mind what marvel that it was well-nigh out of the question for Walter King to focus his attention on algebra, Latin, history, and physics. X Y seemed of very little consequence, and as for the Punic Wars they were so far away as to be hazy beyond any reality ...
— Walter and the Wireless • Sara Ware Bassett

... charge galvanic tingled through the cable, At the polar focus of the wire electric Suddenly appeared a white-faced man among us Called himself ...
— The Autocrat of the Breakfast-Table • Oliver Wendell Holmes, Sr. (The Physician and Poet not the Jurist)

... opposite. He was as interested in Dorothy Marteen's admirers as any fond father could be; and yet his eyes turned with strange, fascinated jealousy to the older woman's loveliness. Suddenly he drew in the focus of his glasses. A face had come within the rim of his observation—the face of a man sitting in the row in front of him. That man, too, had his glasses turned toward the group on the other side of the diamond horseshoe, and ...
— Out of the Ashes • Ethel Watts Mumford

... of the spiritual force is not the spiritual force at all, only a bland deception. If you only focus on what you can see directly, than you chase after only the representation and not the object desired. If a bird is flying through the sky at noontime, casting a shadow on the ground below him, and a man comes along, and in ...
— The Revolutions of Time • Jonathan Dunn

... pried his thoughts away from aborigines and heat, and tried to focus his mind elsewhere. He didn't understand psionic processes, he thought; but then, nobody did, really, as far as he knew. But ...
— Occasion for Disaster • Gordon Randall Garrett

... answered Cyrillon with a passionate gesture, "To gather the straying thoughts of men into one burning focus—and turn THAT ...
— The Master-Christian • Marie Corelli

... the lamp shone from behind him, and he wondered if the picture had been condemned to hang with its face to the wall because it typified the existent rather than the past. He looked more closely, and drew back step by step, until he was in the proper focus to bring out every expression in the lovely face. In the picture he saw each moment a greater resemblance to Jeanne. The eyes, the hair, the sweetness of the mouth, the smile, brought to him a vision of Jeanne herself. ...
— Flower of the North • James Oliver Curwood

... comes in—without a worldly training, indeed, you cannot tell the one from the other. But the past masters of the social art proclaim that "The Season" is dead, and we bow our heads in reverence. Yes, it is vanished, that focus of futilities, that wonderful Season, that phantasmagoria of absurdities, of abortive ambitions, over which a hundred humourists have made merry: it is dead, with its splendours and jubilations and processions—dead as the ropes of roses in ...
— Without Prejudice • Israel Zangwill

... aera as contemporary with Croesus and Solon (B.C. 570,) about a century after Psammeticus (Psamethik 1st) threw Egypt open to the restless Greek.[FN233] From Africa too the Fable would in early ages migrate eastwards and make for itself a new home in the second great focus of civilisation formed by the Tigris-Euphrates Valley. The late Mr. George Smith found amongst the cuneiforms fragmentary Beast-fables, such as dialogues between the Ox and the Horse, the Eagle and the Sun. In after centuries, when the conquests of Macedonian Alexander completed what Sesostris ...
— The Book of the Thousand Nights and a Night, Volume 10 • Richard F. Burton

... its practical activity to-morrow abundantly fulfil its high purpose; may its renown as a seat of true learning, a centre of free inquiry, a focus of intellectual light, increase year by year, until men wander hither from all parts of the earth, as of old they sought ...
— Science & Education • Thomas H. Huxley

... have done it by placing a foot rule on a table and taking that in the picture, but a more scientific and accurate method has been devised by Bertillon. His camera lens is always used at a fixed height from the ground and forms its image on the plate at an exact focus. The print made from the negative is mounted on a card in a space of definite size, along the edges of which a metric scale is printed. In the way he has worked it out the distance between any two points in the picture can be determined. With a ...
— The Poisoned Pen • Arthur B. Reeve

... shop on the corner is the political and social focus of the neighbourhood. I shall never forget the pallid and ghastly countenance of the newsdealer when the rumour first went the rounds that "Hampy" was elected. Every evening a little gathering of local sages meets in the ...
— Pipefuls • Christopher Morley

... we should attend to it that we get—as far as possible—what rest we need, and take all the rest we get in the best way. We cannot expect to fulfill these conditions all at once, but we can aim steadily to do so, and by getting every day a stronger focus and a steadier aim we can gain so greatly in fulfilling the standards of a healthy mind in a healthy body, and so much of our individual dust will be laid, that I may fairly promise a happy astonishment at the view of ...
— Nerves and Common Sense • Annie Payson Call

... Brigade and one regiment of Mississippians. Kershaw stood to the right of the fort and Anderson, of Jenkins' Division, on the left, supported by the other two brigades then present of Jenkins'. The battle was to focus around the fort until that was taken or silenced, then Kershaw was to storm the works on the right, carry them, charge the second line of entrenchment, in which were posted the reserves and recent Tennessee recruits. Jenkins, with Anderson's Brigade on his right and next ...
— History of Kershaw's Brigade • D. Augustus Dickert

... bovine survivors had rudely told the truth about it, without affecting the intelligent. One's own time had not been exempt. Even since 1870 friends by scores had fallen victims to it. Within five-and-twenty years, a new library had grown out of it. Harvard College was a focus of the study; France supported hospitals for it; England published magazines of it. Nothing was easier than to take one's mind in one's hand, and ask one's psychological friends what they made of it, and ...
— The Education of Henry Adams • Henry Adams

... French history, the two focus points are the stoniest of Joan of Arc and Bastille Day. Both furnish abundance of colorful detail and incident upon which to build the pupils' conceptions of the spirit and ideals of the French people. In the case of Bastille Day, correlation ...
— The French Twins • Lucy Fitch Perkins

... to calculate the orbit of a body moving under a central force, and showed that if the force varied as the inverse square of the distance, the orbit would be an ellipse with the centre of force in one focus. The great discovery, which made the writing of his "Philosophiae Naturalis Principia Mathematica" possible, was that the attraction between two spheres is the same as it would be if we supposed each sphere condensed to a point at its centre. The book was published ...
— The World's Greatest Books - Volume 15 - Science • Various

... fashion, and the immediate requirements of her social position. Her life was faithful to its first impulse. Devoted to the improvement of the condition of the people, she was the moving spring of the charitable development of this great city. Her house, without any pedantic effort, had become the focus of a refined society, who, though obliged to show themselves for the moment in the great carnival, wear their masks, blow their trumpets, and pelt the multitude with sugarplums, were glad to find a ...
— Tancred - Or, The New Crusade • Benjamin Disraeli

... type (similarly sterile) by its pragmatic treatment of the problem of knowledge. As the views of knowledge, reality and truth imputed to humanism have been those so far most fiercely attacked, it is in regard to these ideas that a sharpening of focus seems most urgently required. I proceed therefore to bring the views which I impute to humanism in these respects into focus as briefly as ...
— The Meaning of Truth • William James

... Canal Zone. It is hoped that the report which this mission will furnish will point out a way whereby the modicum of assistance which the United States may properly lend the Ecuadorian Government may be made effective in ridding the west coast of South America of a focus of contagion to the future commercial current passing ...
— Complete State of the Union Addresses from 1790 to the Present • Various

... enough of his former gentility about Barnet's appearance and bearing to protect him from this; the police, too, had other things to think of that night, and he was permitted to reach the galleries about Leicester Square—that great focus of London ...
— The World Set Free • Herbert George Wells

... professor of physiology at Berlin University and physician to the imperial household, found himself, when the war broke out, in the very focus of the madness which seized the flower of his nation. Not merely did he refuse to share that madness. Yet more daring, he openly resisted it. In reply to the manifesto of the 93 intellectuals, published ...
— The Forerunners • Romain Rolland

... the Creek Battery, and up into the main town. They halted him at the door of a handsome building, greatly dilapidated by round-shot and shell. This was the naval library, the highest spot in Sebastopol, a centre and focus of danger, but just now occupied by the ...
— The Thin Red Line; and Blue Blood • Arthur Griffiths

... them—with the fierce wind howling around them, sweeping across a broad expanse of hidden country, blowing as if it had arisen simultaneously from every point of the compass, and making those wanderers the focus of its ferocity—the two women walked through the darkness down the hill upon which Mount Stanning stood, along a mile and a half of flat road, and then up another hill, on the western side of which Audley Court lay in that sheltered valley, which seemed to shut ...
— Lady Audley's Secret • Mary Elizabeth Braddon

... object is best attained in the spherical bulb; but it is also attained in a cylindrical vessel with one or two straight filaments coinciding with its axis, and possibly also in parabolical or spherical bulbs with the refractory body or bodies placed in the focus or foci of the same; though the latter is not probable, as the electrified atoms should in all cases rebound normally from the surface they strike, unless the speed were excessive, in which case they would probably follow the general law of reflection. ...
— Experiments with Alternate Currents of High Potential and High - Frequency • Nikola Tesla

... was, Lanyard was well satisfied that he now held the true focus of this conspiracy, a secret of the first consequence, far too momentous to the designs of England to be entrusted, though couched in the most cryptic cipher ever mind of man devised, even to cables or mails ...
— The False Faces • Vance, Louis Joseph

... axis is simply that of a body turning entirely round upon its own centre. The only centre around which the moon performs a revolution is very far from its own proper axis, being situated at the centre of the earth, the focus of its orbit, and as it has no other rotating motion around the earth, it cannot revolve on ...
— The Continental Monthly, Vol. 6, No 4, October, 1864 - Devoted To Literature And National Policy • Various

... He did not know that by perpetually feeling on my bosom the facets of the beloved jewel which had long lain warm upon hers—the cross which had received the last kiss from her lips—I had been able to focus all the scattered rays of thought—I had been able to vitalise memory till it became an actual presence. He did not know that out of my sorrow had been born at last a strange kind of happiness—the happiness that springs from loving a memory—living with a memory—till it becomes ...
— Aylwin • Theodore Watts-Dunton

... that, apart from the polar compression, the shape seemed as if the spheroid were irregularly squeezed; so that though not broken by projection or indentation, the limb did not present the regular quasi-circular curvature exhibited in the focus of our telescopes. Also, between the inner ring and the planet, with a power of 500, I discerned what appeared to be a dark purplish ring, semi-transparent, so that through it the bright surface of Saturn might be discerned as through a veil. Mercury shone ...
— Across the Zodiac • Percy Greg

... usual in an English country town, and this flame was fanned by the unwearied ministerings of a chosen band of Nonconformist clergymen, amongst whom Joseph Alleine was the most conspicuous. No better focus for a revolt could have been chosen, for no city valued so highly those liberties and that creed ...
— Micah Clarke - His Statement as made to his three Grandchildren Joseph, - Gervas and Reuben During the Hard Winter of 1734 • Arthur Conan Doyle

... suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I frankly confess absurd in the highest degree." (Italics ours). After admitting ...
— The Evolution Of Man Scientifically Disproved • William A. Williams

... and he stepped in. Sinking back he tried to relax, to get his stomach to stop complaining, but he couldn't fight the feeling of almost physical illness sweeping over him. He closed his eyes and sank back, trying to drive the ever-plaguing thoughts from his mind, trying to focus on something pleasant, almost hoping that his long-starved conscience might give a final gasp or two and die altogether. But deep in his mind he knew that his screaming conscience was almost the only thing ...
— Bear Trap • Alan Edward Nourse

... you've got talking hysterics, if there is such a thing," Kent interrupted harshly. "You don't know half what you're saying. You've had a hard day, and you're all tired out, and everything looks outa focus. I know—I've seen men like that sometimes when some trouble hit 'em hard and unexpected. What you want is sleep; not poetry about killing people. A man, in the shape you are in, takes to whisky. You're taking to graveyard poetry—and, if you ask me, that's worse ...
— Lonesome Land • B. M. Bower

... defect of the eye, depending upon some irregularity of the cornea or the lens, in which light rays in different meridians are not brought to the same focus. It is to a certain extent hereditary, but plays an insignificant role. It is an undesirable trait, but cannot be considered ...
— Woman - Her Sex and Love Life • William J. Robinson

... we take refuge in generalizations. A common theme is the difficulties of raising children. We can all commiserate with each other about the problems of the generation gap for it is "safer" to talk about parenthood than about marriage. If the talk does focus on marriage, such topics as working wives or overworked husbands or the sharing of household tasks can be ...
— Marriage Enrichment Retreats - Story of a Quaker Project • David Mace

... Court with all the forms it had acquired under Louis XIV.; dignity alone was wanting. As to gaiety, there was none. Versailles was not the place at which to seek for assemblies where French spirit and grace were displayed. The focus of ...
— Marguerite de Navarre - Memoirs of Marguerite de Valois Queen of Navarre • Marguerite de Navarre

... to focus attention on the pointed remarks Miss Lois Daggett was making, caught occasional snatches of their conversation. Fanny had never liked Lois Daggett; but in her new role of minister's wife, it was her foreordained duty to love everybody and ...
— An Alabaster Box • Mary E. Wilkins Freeman and Florence Morse Kingsley

... once stated on paper, there is no difficulty in keeping it up. That it presents an odd, unsubstantial, whimsical, new thing: a sort of previously unthought-of Power going about. That it will concentrate into one focus all that is done in the paper. That it sets up a creature which isn't the Spectator, and isn't Isaac Bickerstaff, and isn't anything of that kind: but in which people will be perfectly willing to believe, and which is just mysterious and quaint ...
— The Life of Charles Dickens, Vol. I-III, Complete • John Forster

... wide moorlands, dotted with innumerable lakelets, with noble mountain groups rising over the wild boggy lowlands. To the student of metamorphism the geology of this area is of very high interest. The botanist finds himself once again, as in Kerry, in a focus of the southern flora already discussed. As stated above, Connemara contributes to the list of Pyrenean plants three Heaths, of which St. Dabeoc's Heath is the loveliest of the British representatives of the order. Here we may also ...
— The Sunny Side of Ireland - How to see it by the Great Southern and Western Railway • John O'Mahony and R. Lloyd Praeger

... to thermo-electric pyrometers in that a thermo-couple is employed. The heat rays given out by the hot body fall on a concave mirror and are brought to a focus at a point at which is placed the junction of a thermo-couple. The temperature readings are obtained from an indicator similar to that used ...
— Steam, Its Generation and Use • Babcock & Wilcox Co.

... said before, we think that a good lens requires no "actinic" focus to find. In a properly constructed lens the chemical and visual foci are identical; and we would ourselves not be troubled with the use of one in which they differed. Our advertising columns will point out to you where such a lens man be procured. We believe, ...
— Notes and Queries, Number 206, October 8, 1853 • Various

... or morbidly long sight: in this affection, the organ, instead of being spherical, is too flat from front to back, and is often altogether too small, so that the retina is brought too forward for the focus of the humours; consequently a convex glass is required for clear vision of near objects, and frequently even of distant ones. This state occurs congenitally, or at a very early age, often in several children of the same family, ...
— The Variation of Animals and Plants Under Domestication, Volume II (of 2) • Charles Darwin

... of them, he is sure to disgust the rest; if he select particular men from among them all, it is a hazard that he disgusts them all. Those who are left out, however divided before, will soon run into a body of opposition, which, being a collection of many discontents into one focus, will without doubt be hot and violent enough. Faction will make its cries resound through the nation, as if the whole were in an uproar, when by far the majority, and much the better part, will seem for awhile, as it were, annihilated by the ...
— Thoughts on the Present Discontents - and Speeches • Edmund Burke

... which, Sir Richard straightened his bowed shoulders somewhat and his sallow cheek flushed. "Here at last I may serve you somewhat, Martin," said he and, turning his back to the sun, he set the instrument to his eye and began moving the three vanes to and fro until he had the proper focus and might obtain the sun's altitude; whereby he had presently found our present position, the which he duly pricked upon the chart. He now showed me how, by standing out on direct course instead of following the tortuous windings of the coast, we could shorten our passage by very ...
— Martin Conisby's Vengeance • Jeffery Farnol

... President. He was made welcome, of course, and the varied mechanism explained to him. As the crowning "treat," he was given a peer through the celebrated instrument. It was leveled at the moon, or, rather, arranged to have that orb in its focus at the time. The visitor was appalled, as well as wondering at the view, and slowly withdrew by the trap-door. But when the astronomer resumed his observations and calculations he was interrupted by the same sedate and absorbed caller. He returned, perplexed, as, on glancing up at the moon with ...
— The Lincoln Story Book • Henry L. Williams

... eyes are able to see life in focus, as it were, though it has appeared to men of less harmonious ...
— The Poet's Poet • Elizabeth Atkins

... misshapen, or unlovely, can resist their magic. That is because those arts can accomplish their function in the choice and development of some special situation, which lifts or glorifies a character, in itself not poetical. To realise this situation, to define, in a chill and empty atmosphere, the focus where rays, in themselves pale and impotent, unite and begin to burn, the artist may have, indeed, to employ the most cunning detail, to complicate and refine upon thought and passion a thousand-fold. Let us take a brilliant ...
— The Renaissance: Studies in Art and Poetry • Walter Horatio Pater

... in this unity of plot that the Amadis series differs from its predecessors—the Arthurian romances, and those of the paladins of Charlemagne, which are detached adventures, each complete in itself, and not bearing to any common focus.—Amadis de Gaul ...
— Character Sketches of Romance, Fiction and the Drama - A Revised American Edition of the Reader's Handbook, Vol. 3 • E. Cobham Brewer

... city and the face slid out of focus; the vision faded like a darkened magic-lantern, and the grayness moved ...
— The Street That Wasn't There • Clifford Donald Simak

... choked-up feelings, a sort of moral leakage. It might be said of Coleridge, in the phrase which he used of Nelson, that he was "heart-starved." Tied for life to a woman with whom he had not one essential sympathy, the whole of his nature was put out of focus; and perhaps nothing but "the joy of grief," and the terrible and fettering power of luxuriating over his own sorrows, and tracing them to first principles, outside himself or in the depths of his sub- consciousness, gave him the courage to ...
— Poems of Coleridge • Coleridge, ed Arthur Symons

... has alone sufficed to render it famous. The passage concerning the starry heavens and the moral law as the two transcendently overwhelming phenomena of the universe is, perhaps, more frequently quoted than any other written by a German author. This is the treatise which forms the central focus of Kant's thinking. It stands midway between the "Critique of Pure Reason" and the "Critique of Judgment." Herein Kant takes up the position of a vindicator of the truth of Christianity, approaching his proof of its validity and authority by first establishing positive affirmations ...
— The World's Greatest Books—Volume 14—Philosophy and Economics • Various

... of which she stood was dimly lighted by a solitary candle at the farther extremity; but Ellen was exposed to the glare of the three lamps, held by Hugh, his wife, and the servant-girl. Their combined rays seemed to form a focus exactly at the point where they reached her; and the beholders, had any been sufficiently calm, might have watched her features in their agitated workings and frequent change of expression, as perfectly as by the broad light of day. Terror had at first ...
— Fanshawe • Nathaniel Hawthorne

... ancient chamber, and make one think of the groups that must formerly have gathered there—of all the wet boot-soles, the trickling doublets, the stiffened fingers, the rheumatic shanks, that must have been presented to such an incomparable focus of heat. To-day, I am afraid, these mighty hearths are for ever cold; justice is probably administered with the aid of a modern calorifere, and the walls of the palace are perforated with regurgitating tubes. Behind and above the gallery that surmounts the ...
— A Little Tour in France • Henry James

... Fluent elokventa, fluanta. Fluid fluajxo. Fluid flua. Flute fluto. Flutter flugeti, flirti. Flux alfluo. Fly flugi. Fly musxo. Fly away forflugi. Foal cxevalido—ino. Foam sxauxmi. Foam sxauxmo—ajxo. Foam (sea) marsxauxmo. Focus fokuso. Fodder furagxo. Foetid malbonodora. Foe kontrauxulo, malamiko. Fog nebulo. Foil (weapon) rapiro, skermilo. Fold faldi. Fold (sheep) sxafejo. Folding-screen ventosxirmilo. Foliage foliaro. ...
— English-Esperanto Dictionary • John Charles O'Connor and Charles Frederic Hayes

... disheartened statesman had written and forwarded on May fourteenth a second letter, of the same tenor as the first. This measure likewise had failed of effect, for the messenger had been stopped at Bastia, now the focus of Salicetti's influence, and the letter ...
— The Life of Napoleon Bonaparte - Vol. I. (of IV.) • William Milligan Sloane

... some idea of social progress. We are still childishly pleased when we see the further subdivision of labor going on, because the quantity of the output is increased thereby, and we apparently are unable to take our attention away from the product long enough to really focus it upon the producer. Theoretically, "the division of labor" makes men more interdependent and human by drawing them together into a unity of purpose. "If a number of people decide to build a road, and one digs, ...
— Democracy and Social Ethics • Jane Addams

... were the only beauty of Miss Mary Blanchet's face. She had not good sight, for all their brightness. When any one talked with her at some little distance across a room, or even across a broad table, he could easily see by the irresponsive look of the eyes—the eyes which never quite found a common focus with his even during the most animated interchange of thought—that Miss Blanchet had short sight. But Miss Blanchet always frankly and firmly declined to put on spectacles. "I have only my eyes to boast of, my dear," she said to all her female advisers, "and I am not going to cover ...
— The Galaxy, Volume 23, No. 2, February, 1877 • Various

... amazement. It had not occurred to her that this girl was married—there seemed nothing of the wife about her. And that she should be the neighbor whom Anne had pictured as a commonplace Four Winds housewife! Anne could not quickly adjust her mental focus to this astonishing change. ...
— Anne's House of Dreams • Lucy Maud Montgomery

... and readable by every educated man. The 'View' itself has been in a later edition eclipsed by the later 'History of the English Criminal Law.' In point of style it is perhaps better than its successor, because more concentrated to a single focus. Although I do not profess to be a competent critic of the law, a few words will explain the sense in which I take it ...
— The Life of Sir James Fitzjames Stephen, Bart., K.C.S.I. - A Judge of the High Court of Justice • Sir Leslie Stephen

... kernel is that vast sleepy interior of China. Few people, even in Shanghai, know what it means; so that to the stay-at-home European pardon for ignorance of existing conditions so much out of his focus ...
— Across China on Foot • Edwin Dingle

... repeatedly focus above the level of the other man's eyes, you make the impression that you are an idealist rather than a practical person. What you say will not seem to him to apply directly to his case. He will not feel the personal, or man-to-man contact ...
— Certain Success • Norval A. Hawkins

... to see what is going on in another room. The focus may be altered in range so that the faces of those in the room may be recognized and the act of passing money or signing cheques, for instance, may be detected. The instrument is fashioned somewhat after the cytoscope of the doctors, with which ...
— The Ear in the Wall • Arthur B. Reeve

... Angelique arranged them ready for use. They gave her a spoonful and raised her on pillows, and she rested drowsily again, grateful for the damp wind which made the others shiver. Angelique's sweet fixed gaze, with an unconscious focus of vital power, dwelt on the sick girl; she felt the yearning pity which mothers feel. And this, or the glamour of dim light, made her oval face and dark hair so beautiful that Rice looked at her; and Peggy, coming from the ...
— Old Kaskaskia • Mary Hartwell Catherwood

... armaments had done their work. "Let us now glance at the times as they are, and see how the business of life is transacted. Manhattan Island has something over 2,500,000 inhabitants, and is surrounded by a belt of population, several miles wide, of 12,000,000 more, of which it is the focus, so that the entire city contains more than 14,500,000 souls. The several hundred square miles of land and water forming greater New York are perfectly united by numerous bridges, tunnels, and electric ferries, while the city's great natural advantages have been enhanced and beautified by every ...
— A Journey in Other Worlds • J. J. Astor

... condense Healthy aromas into poison-drops, Narcotic drugs of dangerous strength and power,— And wines of paradise to thee become Intoxicating essences of hell. Cold crystallizer of the warm heaven's gold! Thou rigorous analyst! thou subtile brain! Gathering thought's sunshine to a focus heat That blinds and burns and maddens! What, my friend! Are we, then, salamanders? Do we live A charmed life? Do gases feed like air? Pray you, pack up your crucibles and go! Your statements are too awfully abstract; Your logic strikes too near our warm tap-roots: We shall breathe freer ...
— Atlantic Monthly, Vol. II., November, 1858., No. XIII. • Various

... conductor for the magician's will. It directs the flow of his thought and concentrates it upon a given point in space or an object. It is, magically, what the sights of a rifle are to a sportsman. It enables him to focus his powers with exact precision upon the mark against which, or upon which, his will is directed. Apart from this there is no power, per se, in the Wand itself, any more than there is in a lightning conductor without the electric storm. Ergo, the Wand is the conductor, in the magician's hand, ...
— The Light of Egypt, Volume II • Henry O. Wagner/Belle M. Wagner/Thomas H. Burgoyne

... desideratum. But when you collect one thing you always incidentally collect others. The fisherman who casts his net for shad usually secures a few other fish, and once in a while a turtle, which enlarges the mesh to suit, and gives sweet liberty to the shad. To focus exclusively on dollars is to secure jealousy, fear, vanity, and a vaulting ambition that may claw its way through the mesh and let your dollars slip ...
— Little Journeys to the Homes of the Great, Volume 4 (of 14) - Little Journeys to the Homes of Eminent Painters • Elbert Hubbard

... independence, and a place in the federation; but Monaco and Mantone smiled at so arrogant a pretension. Rocco-Bruno was not the strongest, and was reduced to silence: from that moment, however, Rocco-Bruno was marked out to the two national conventions as a focus of sedition. The republic was finally proclaimed under the title of ...
— Blackwood's Edinburgh Magazine, Vol. 53, No. 331, May, 1843 • Various

... depending from it like the beard of some fiery gulleted ogre—the strings of glass left by the withdrawal of the wand. The heat three feet away was enough to make sand melt and run like water, but I was not unpleasantly warm. This was because I stood at the focus of three tin pipes, thru which streams of cold air, fan-impelled, beat upon me. Without this cooling agent it would be impossible for men to work so close to the heat ...
— How To Write Special Feature Articles • Willard Grosvenor Bleyer

... for their lives, yet their authority was eventually superseded, and they were compelled to bow to the storm by retiring from their seats of government. One common spirit pervaded the United Provinces of America, though it was more rampant in some colonies than others. The grand focus of rebellion was still at Massachusets Bay, where, towards the close of the year, in the course of predatory hostility, the town of Falmouth was cannonaded and totally destroyed, in revenge for some offence relative to supplies, and on the refusal of its inhabitants ...
— The History of England in Three Volumes, Vol.III. - From George III. to Victoria • E. Farr and E. H. Nolan

... it was away up in the north- west, on one of the higher reaches of the Enyong Creek, and a two days' journey for her by water. The lads lived at a town called Ikpe, an old slave centre, that had been in league with Aro, and the focus of the trade of a wide and populous area. It was a "closed" market, no Calabar ...
— Mary Slessor of Calabar: Pioneer Missionary • W. P. Livingstone

... objective, f, the thin glass cover. It will be easily seen that the ray of light, h, from the mirror or condenser above the stage will enter the slide and thence be refracted to the silvered surface of the illuminator, r, whence it is reflected at a corresponding angle to the object in the focus of the objective. A shield to prevent unnecessary light from entering the objective can be made of any material at hand, by taking a strip one inch long and three-fourths of an inch wide and turning up one end. ...
— Scientific American Supplement, No. 447, July 26, 1884 • Various

... fruits of his reflections were bitter. He viewed the events of the night in truer focus; he saw that by his flight he had sealed his fate—had voluntarily outlawed himself. It became frightfully evident to him that he dared not seek to draw from his bank, that he dared not touch even his modest Post Office account. With the exception ...
— The Yellow Claw • Sax Rohmer

... excitement over Irish affairs and for a while I wondered how any one could think that Irish affairs mattered in the least. Fresh from my wanderings over a huge continent Ireland seemed to me a small place. It took me a week to get my mind into focus again. Then I began once more to see the Home Rule question as it should be seen. South America and Ascher's web of international credit ...
— Gossamer - 1915 • George A. Birmingham

... a little better, but he was still shaken, and his head ached violently. Little snatches of undefined memory tried to creep into his consciousness, but he couldn't quite bring them into focus. He turned toward the rail, and saw Min-ta ...
— The Players • Everett B. Cole

... weeks before, he had been placed by some intelligent friend at Mrs. Clanfrizzle's establishment, with the express direction to mark and thoroughly digest as much as he could of the habits and customs of the circle about him, which he was rightly informed was the very focus of good breeding and haut ton; but on no account, unless driven thereto by the pressure of sickness, or the wants of nature, to trust himself with speech, which, in his then uninformed state, he was assured ...
— The Confessions of Harry Lorrequer, Vol. 2 • Charles James Lever

... retrace his steps, and that at the imminent hazard of being captured. He carried habitually a small dark lantern, and had thought of so disposing of it in the lower branches of this very elm, as to form a focus of it, but hesitated about doing that which might prove a guide to his enemies as well as to himself. If Margery would take charge of this lantern, he could hope to reap its advantages without incurring the hazard of ...
— Oak Openings • James Fenimore Cooper



Words linked to "Focus" :   concentrate, focalise, sharpness, stress, particularism, engulf, correct, zoom in, direction, clearness, clarity, think, focalize, hear, distinctness, aline, refocus, soak up, engross, cogitate, conform, focal infection, emphasis, line up, steep, focusing, immersion, pellucidity, pore, accent, nidus, align, listen, set, focussing, cerebrate, engrossment



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