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Differential   /dˌɪfərˈɛnʃəl/  /dˌɪfərˈɛntʃəl/   Listen
Differential

adjective
1.
Relating to or showing a difference.
2.
Involving or containing one or more derivatives.



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"Differential" Quotes from Famous Books



... smoothed their surfaces. That is to say in general terms, the actions of environing agencies, so far as they have operated indiscriminately, have produced in the stones a certain unity of character; at the same time that they have, by their differential effects, separated them: the larger ones having withstood certain violent actions which the smaller ...
— Essays: Scientific, Political, & Speculative, Vol. I • Herbert Spencer

... specimens. Otherwise we find that the characters mentioned above differentiate canicaudus from its nearest relatives, Microtus montanus canescens to the northward, M. m. nanus to the eastward, and M. m. montanus to the southward. In canicaudus we have noted one additional differential character; the interpterygoid space is acuminate anteriorly. In this feature and in each of the other features mentioned above, intergradation with Microtus montanus nanus is seen in the specimens from Hood River and Wapinitia. In the specimens from Hood ...
— A New Subspecies of Microtus montanus from Montana and Comments on Microtus canicaudus Miller • E. Raymond Hall

... much more than the individual. We shall take it for granted that British and Irish products and manufactures enjoy a preference on import into the colonies, over imports from foreign countries, of at least five per cent, resulting from differential duties in favour of the parent state: it may be more, and we believe it will be found more; but such is the preference. This profit must be all to the account of the British exporter; for it is not received by the colonial custom-house, ...
— Blackwood's Edinburgh Magazine, Volume 54, No. 337, November, 1843 • Various

... parts is known as "the differential motion," and the difficulties in constructing its suitable gearing arose from the fact that the speed of the rove passing on to the various diameters must be maintained throughout, and must coincide with ...
— The Jute Industry: From Seed to Finished Cloth • T. Woodhouse and P. Kilgour

... 6. Cuddesdon.—Up soon after 6. Began my Harmony of Greek Testament. Differential calculus, etc. Mathematics good while, but in a rambling way. Began Odyssey. Papers. Walk with Anstice and Hamilton. Turned a little bit of Livy into Greek. Conversation on ethics and ...
— The Life of William Ewart Gladstone, Vol. 1 (of 3) - 1809-1859 • John Morley

... also longed inexpressibly to hide his new phase of trouble from the chattering throng of people who were curious to know about them. To know? As if they could know! They might better sit down to gossip over the secrets of the differential and ...
— His Sombre Rivals • E. P. Roe

... Scientific God, you observe, differing from the unscientific one, in that the purest in heart cannot see—nor the softest in heart feel—this spacious Deity—a Medium, pervading space—"the office of which" (italics all mine) "appears to be to degrade and ultimately extinguish, all differential motion. It has been well pointed out by Thomson, that, looked at in this light, the universe is a system that had a beginning and must have an end, for a process of degradation cannot be eternal. If we could view ...
— The Storm-Cloud of the Nineteenth Century - Two Lectures delivered at the London Institution February - 4th and 11th, 1884 • John Ruskin

... some of the apparently unaccountable facts in savage society, where we are frequently encountered by a comparatively high degree of culture associated with a cruel and debasing system of rites and practices which belong to the lowest savagery. Dr. Haddon has usefully suggested the term "differential evolution" for this phenomenon in the culture history of man,[310] and as I find myself in entire agreement with this distinguished anthropologist as to the facts[311] which call for a special terminology, I gladly adopt ...
— Folklore as an Historical Science • George Laurence Gomme

... broken the differential. I bet ten dollars on it." And investigation proved his diagnosis was correct. "I suppose it will take all summer to get a new part," growled the forester. "This truck will have to stand here idle until repairs come. But we can't stand here ...
— The Young Wireless Operator—As a Fire Patrol - The Story of a Young Wireless Amateur Who Made Good as a Fire Patrol • Lewis E. Theiss

... right," said Warburton reflectively. "In any case, I know as much about art as I do about the differential calculus. To make money is a good and joyful thing as long as one doesn't bleed the poor. So go ahead, my son, and ...
— Will Warburton • George Gissing

... check. It was as much a habit as breathing. This was probably the result of that cold she'd gotten last week, but there was nothing like being sure. Now let's see—temperature 99.5 degrees, red cell count 4-1/2 million. White cell count ... oh! 2500 ... leukopenia! The differential showed a virtual absence of polymorphs, lymphocytes and monocytes. The whole slide didn't have two hundred. Eosinophils and basophils way up—twenty and fifteen per cent respectively—a relative rise rather than an absolute ...
— Pandemic • Jesse Franklin Bone

... superior cunning, stealth, and swiftness of foot, or even better weapons, would often lead to victory as well as mere physical strength. Moreover, this kind of more or less perpetual war goes on amongst savage peoples. It could lead, therefore, to no differential characters, but merely to the keeping up of a certain average standard of bodily and ...
— More Letters of Charles Darwin Volume II - Volume II (of II) • Charles Darwin

... of the Australians, a somewhat different complexion is put upon the state of their culture. With very plain living went something that approached to high thinking; and we must recognize in this case, as in others, what might be termed a differential evolution of culture, according to which some elements may advance, whilst others stand ...
— Anthropology • Robert Marett

... may also be formulated as follows. If there are two Gods, they must have something in common—that in virtue of which they are Gods—and something in which they differ, which makes them two and not one. If each of them has in addition to divinity a differential element, they are both composite, and neither is the first cause or the necessary existent (19). If one of them only has this differentia, then this one is composite and is not ...
— A History of Mediaeval Jewish Philosophy • Isaac Husik

... Differentiation on a Particle is very remarkable, the first differential being frequently of greater value than the original particle, and the ...
— The Life and Letters of Lewis Carroll • Stuart Dodgson Collingwood

... poet?" I asked. "There are two brothers, I know; and both have attained reputation in letters. The minister, I believe, has written learnedly on the Differential Calculus. He is ...
— The Short-story • William Patterson Atkinson

... how it must be; but I suppose I ought to understand the differential calculus to compute it. Circles are wonderful things; and the science of curves holds almost everything. Rose, when do you think we shall get ...
— We Girls: A Home Story • Mrs. A. D. T. Whitney

... I've always admitted that you were simply perfect,' Harry said, glancing at her with visible admiration, 'and I don't think anything on earth could possibly improve you—except perhaps a judicious course of differential and integral calculus, which might possibly serve to tone down slightly your exuberant and excessive vitality. Still, you know, from the point of view of society, which is a force we have always to reckon with—a constant, in fact, that we may call Pi—there can be no doubt in the world that ...
— Philistia • Grant Allen

... able to make, the following from Mrs. Somerville: "Nothing has afforded me so convincing a proof of the Deity as these purely mental conceptions of numerical and mathematical science which have been, by slow degrees, vouchsafed to man—and are still granted in these latter times by the differential calculus, now superseded by the higher algebra—all of which must have existed in that sublimely omniscient mind from eternity." See also The Life and Letters of Adam Sedgwick, Cambridge, 1890, vol. ii, ...
— History of the Warfare of Science with Theology in Christendom • Andrew Dickson White

... the young lady showed her remarkable muscular strength and skill in managing herself in the accomplishment of feats which looked impossible at first sight. How often The Terror had thought to herself that she would gladly give up all her knowledge of Greek and the differential and integral calculus if she could only perform the least of those feats which were mere play to The Wonder! Miss Euthymia was not behind the rest in her attainments in classical or mathematical knowledge, and she was one of ...
— A Mortal Antipathy • Oliver Wendell Holmes, Sr.

... face, thrilling in its awakened emotion, met his glance at the window of a carriage. He dispatched his luggage to the Faucon, and sprang lightly in the carriage when the omnibuses had departed for the Lausanne plateau. Alan Hawke was carefully differential in his greeting and he meekly answered all the rapid queries of his ...
— A Fascinating Traitor • Richard Henry Savage

... however, as yet no intention of adopting astronomy as his profession. For two years he continued to work in the counting-house by day, and to pore over the Mecanique Celeste and the Differential Calculus by night. But the post of assistant in Schroeter's observatory at Lilienthal having become vacant by the removal of Harding to Gottingen in 1805, Olbers procured for him the offer of it. It was not without a struggle that he resolved ...
— A Popular History of Astronomy During the Nineteenth Century - Fourth Edition • Agnes M. (Agnes Mary) Clerke

... The differential behavior of the antineuritic and antiscorbutic factors towards adsorbents. ...
— The Vitamine Manual • Walter H. Eddy

... Frequently in telephony, the electromagnets are provided with more than one winding. One purpose of the double-wound electromagnet is to produce the so-called differential action between the two windings, i.e., making one of the windings develop magnetization in the opposite direction from that of the other, so that the two will neutralize each other, or at least exert different and opposite influences. The principle of the differential electromagnet may be ...
— Cyclopedia of Telephony & Telegraphy Vol. 1 - A General Reference Work on Telephony, etc. etc. • Kempster Miller

... could see me now with a grease-gun under my car, Filling my differential, ere I start for the camp afar, Atop of a sheet of frozen iron, in cold that'd make you cry. "Why do we do it?" you ask. "Why? We're the F.A.N.Y." I used to be in Society—once; Danced, hunted, and flirted—once; Had white hands and ...
— Fanny Goes to War • Pat Beauchamp

... present findings it is no longer enough to trace the appearing of the after-image solely to a differential fatigue in the retina. The fact is that as long as the eye is turned to the bright window-pane a more intensive blood-activity occurs in the portions of the eye's background met by the light than in those where the dark window-bar throws its shadow on the retina. If the eye so influenced is ...
— Man or Matter • Ernst Lehrs

... first London number of an Irish paper, Protestant in politics. It opens with "Suggestions on the subject of a Novum Organum Moralium," which is the application of algebra and the differential calculus to morals, socials, and politics. There is also a leading article on the subject, and some applications in notes to other articles. A separate publication was afterwards made, with the addition of a long Preface; the ...
— A Budget of Paradoxes, Volume II (of II) • Augustus de Morgan

... that the same thing holds good for the stimuli of the sensations of sight and of hearing, the differential stimulus bearing always a fixed ratio to the total magnitude of the stimuli. Here, then, was the ...
— A History of Science, Volume 4(of 5) • Henry Smith Williams

... any direction to catch the sound of approaching danger, as well as of a movable and dilated nostril that scented danger from afar,—the olfactory sense at one time having a different function and more essential to life than that of merely noting the differential aroma emitted by segars or cups of Mocha or Java, and the ear being then used for some more useful purpose than having its tympanum tortured by Wagnerian discordant sounds. Our ancestors might not ...
— History of Circumcision from the Earliest Times to the Present - Moral and Physical Reasons for its Performance • Peter Charles Remondino

... brake. Strong & Ross, scales. Wm. & W.H. Lewis, photographic plates. T.A. Weston, differential pulley. S.S. Hartshorn, buckles. H.A. Stone, making cheese. N. Whitehall, cultivator. J.R. Harrington, carpet lining. H.L. Emery, cotton gins. J. Stainthorp, moulding candles. Walter Hunt's heirs, paper collars. ...
— Scientific American, Volume XXXVI., No. 8, February 24, 1877 • Various

... am of opinion that we should hesitate before adopting that interpretation in view of the cogent indirect evidence afforded by other data that the fall of the birth-rate is differential, and that the differentiation is largely economic. There are at least two considerations which must be borne in mind in connection with these schedules. The first is, that all the marriages described ...
— Birth Control • Halliday G. Sutherland

... is associated with the doctrine of mathematical continuity, and its mathematical methods are those of the Differential Calculus, which is the appropriate expression of the ...
— Five of Maxwell's Papers • James Clerk Maxwell

... but his profound vision perceived its possible invalidity. He saw that it was at least possible that the difference of conducting power between the earth and the wire might give one an advantage over the other, and that thus a residual or differential current might be obtained. He combined wires of different materials, and caused them to act in opposition to each other, but found the combination ineffectual. The more copious flow in the better conductor was exactly counterbalanced ...
— Little Masterpieces of Science: - Invention and Discovery • Various

... important, but it was, on the whole, better calculated to startle the prevailing preconceptions; for, as to the new system of morals introduced by Christ, generally speaking, it is too dimly apprehended in its great differential features to allow of its miraculous character being adequately appreciated; one flagrant illustration of which is furnished by our experience in Affghanistan, where some officers, wishing to impress Akhbar Khan with the beauty of Christianity, ...
— Memorials and Other Papers • Thomas de Quincey

... had occasion to remark—and few men, let me tell you, had finer opportunities of doing so—the differential symptomatics between a Party Fight, that is, a battle between Orangemen and Ribbon-men, and one between two Roman Catholic Factions. There is something infinitely more anxious, silent, and deadly, in the compressed vengeance, and the hope of slaughter, which characterize ...
— The Ned M'Keown Stories - Traits And Stories Of The Irish Peasantry, The Works of - William Carleton, Volume Three • William Carleton

... experiment, began to bear rich fruits. Sir Isaac Newton (1642-1727) not only discovered the law of gravitation: other discoveries by him in mechanics and optics were of great moment in the progress of those sciences. Fluxions, or the differential calculus, was discovered independently by both Newton and Leibnitz. Euler, a Swiss mathematician of the highest ability (1707-1783), contributed essentially to the advancement of mechanics. Napier invented logarithms, to shorten mathematical ...
— Outline of Universal History • George Park Fisher

... for support, What we should have to show, therefore, in order to justify the inference of a deterioration due to this process, would be, not that it simply increased the number of the candidates for living, but that it gave to the feebler candidates a differential advantage; that they are now more fitted than they were before for ousting their superior neighbours from the chances of support. But I can see no reason for supposing such a consequence to be probable or even possible. The struggle for existence, ...
— Social Rights and Duties, Volume I (of 2) - Addresses to Ethical Societies • Sir Leslie Stephen

... deficiency, we are persuaded, is owing to the limited range of objects to which the education of the young of the higher classes is so exclusively directed in Oxford and Cambridge. Greek and Latin, Aristotle's logic and classical versification, quadratic equations, conic sections, the differential calculus, are very good things, and we are well aware that it is by excellence in them that the highest honours in these seminaries of learning can alone be attained. They are essential to the fame of a Parr or a Porson, a Herschel or a Whewell. But a very different species of mental ...
— Blackwood's Edinburgh Magazine, Volume 62, Number 361, November, 1845. • Various

... will therefore, in the main, have the character of the species and be indistinguishable from it, or show only such differences as escape ordinary observation. When occurring in the seeds of the variety they betray themselves as soon as the differential characters are displayed. Between the thousands of flowering plants of a white variety the hybrids will instantly catch the eye by their red or blue corollas. Quite the contrary effect results from the admixture of hybrids with the seeds of the species itself. Here no difference will show itself, ...
— Species and Varieties, Their Origin by Mutation • Hugo DeVries

... this generation ever knew a Chancellor of the Exchequer who had even read the Act of Union; Mr Lloyd George, on his own admission, had certainly not read it in 1909. What has happened is very simple. The fulfilment of treaty obligations required differential taxation, but administrative convenience was best served by a uniform system of taxation. In the struggle between the two, conscience was as usual defeated. The Chancellor, according to the practice which has overridden the Act of Union budgets for Great Britain, ...
— The Open Secret of Ireland • T. M. Kettle

... theorem and series, converging and diverging. I got Todhunter's larger 'Plane Trigonometry,' and read it, with the theorems contained in it; then his 'Spherical Trigonometry;' his 'Analytical Geometry, of Two Dimensions,' and 'Conics.' I next obtained De Morgan's 'Differential and Integral Calculus,' then Woolhouse's, and lastly, Todhunter's. I found this department of mathematics difficult and perplexing to the last degree; but I mastered it sufficiently to turn it to some account. This last mathematical course represents eighteen months of hard work, and I ...
— Men of Invention and Industry • Samuel Smiles

... says the mechanic, scratchin' his chin. "They must be a couple of pins sheered off of the differential and the—" ...
— Alex the Great • H. C. Witwer

... himself up to higher mathematics when a young man, instead of turning his talent to account in an architect's office, a shipbuilding yard, or a locomotive shop. He could find the strain at any part of an iron frame building by the differential and integral calculus to the millionth of an ounce, but the everyday technical routine work with volumes of ready-made tables was unfamiliar and uncongenial to him; he would rather have calculated the tables themselves. The ...
— The Little City Of Hope - A Christmas Story • F. Marion Crawford

... was to serve as a larder, and this strenuous work continued until the cave was large enough to hold all the mutton, and a considerable quantity of seal and penguin. Close to this larder Simpson and Wright were busy in excavating for the differential magnetic hut. ...
— The Voyages of Captain Scott - Retold from 'The Voyage of the "Discovery"' and 'Scott's - Last Expedition' • Charles Turley

... made on the differential principle. The lifting chain is passed over two sheaves, each of which is geared internally, the one having one or more teeth in excess of the other. Revolving around these internal teeth is a pinion, actuated by an eccentric, ...
— Scientific American, Vol.22, No. 1, January 1, 1870 • Various

... she protests that she does not require it, and that she does not receive it, practically always does receive differential treatment at the ...
— The Unexpurgated Case Against Woman Suffrage • Almroth E. Wright

... pass with comparative freedom through the aqueous vapour of the air: the absorbing power of this substance being mainly exerted upon the invisible heat that endeavours to escape from the earth. In consequence of this differential action upon solar and terrestrial heat, the mean temperature of our planet is higher than is due to its distance from ...
— Fragments of science, V. 1-2 • John Tyndall

... Canker Definition Causes, Predisposing and Exciting Symptoms and Pathological Anatomy Differential Diagnosis and Prognosis Treatment Malcolm's, Lieutenant Rose's, Bermbach's, Hoffmann's and Imminger's Treatment ...
— Diseases of the Horse's Foot • Harry Caulton Reeks

... the queen of the kitchen be respected; but—ah, let me see, Mr Distin, I think we were to take up the introductory remarks made on the differential calculus." ...
— The Weathercock - Being the Adventures of a Boy with a Bias • George Manville Fenn

... because conversation is patterned. But this little generator of mine was non-random. It was the multiple recording of ten thousand different conversations, all meaningless, against a background of "white" noise. Try that one on your differential analyzers. ...
— A Spaceship Named McGuire • Gordon Randall Garrett

... from the Dutch, it differs still more from the proper Low German dialects of Westphalia, Oldenburg, and Holstein; all of which have the differential characteristics of the Dutch in a greater ...
— The Ethnology of the British Colonies and Dependencies • Robert Gordon Latham

... by monosexual inheritance, the differences became confirmed, until finally they became inborn. Others, however, assume that the psychical characteristics by which the sexes are differentiated result solely from individual differences in education. Stern believes that in the case of one differential character, at least, he can prove that for many centuries there has been no difference between the sexes in the matter of education; this character is the capacity for drawing. Kerschensteiner has studied the development of this gift, and considers ...
— The Sexual Life of the Child • Albert Moll

... regard the dividends of the shareholders rather than the interests of the public. The existence of a monopoly of this kind in private hands seemed to him indefensible. His attention was especially directed to the injury done to trade by the differential rate imposed on goods traffic; on many lines it was the custom to charge lower rates on imported than on exported goods, and this naturally had a very bad effect on German manufactures. He would have liked to remedy all these deficiencies by making all railways the property ...
— Bismarck and the Foundation of the German Empire • James Wycliffe Headlam

... Academiques sur la Lumiere," pref., VII.—He especially opposes "the differential refrangibility of heterogeneous rays" which is "the basis ...
— The Origins of Contemporary France, Volume 4 (of 6) - The French Revolution, Volume 3 (of 3) • Hippolyte A. Taine

... our West India monopoly,—the existence of the high prohibitory differential duty on sugar, is the greatest, strongest, and least answerable argument at present used by slave-holding countries against emancipation. The following was put strongly to ourselves in Amsterdam a short time since by a large slave owner in Dutch Guiana:—"We should be glad," said ...
— The Economist - Volume 1, No. 3 • Various

... and more puzzled and interested. We had some tea, which made me feel positively luxurious, and then I looked at the backs of the books. There were "The Pilgrim's Progress," and "Tappan on the Will." Then came Shakespeare, a shilling edition of Keats, Drew's "Conic Sections," Hall's "Differential Calculus," Baker's "Land Surveying," Carlyle's "Heroes," a fat volume of Shelley, "The Antiquary," White's "Selborne," Bonnycastle's "Algebra," and five volumes of "The Tales ...
— The Romance of the Coast • James Runciman

... of a leucocytosis, it is not sufficient merely to count the aggregate number of leucocytes present. A differential count must be made to determine which variety of cells is in excess. In the majority of surgical affections it is chiefly the granular polymorpho-nuclear neutrophile leucocytes that are in excess (ordinary leucocytosis). ...
— Manual of Surgery - Volume First: General Surgery. Sixth Edition. • Alexis Thomson and Alexander Miles

... motor-bus reluctantly slackens and stops. Not the differential brake, nor the foot-brake, has arrested the motor-bus, but the invisible brake of public opinion, acting by administrative transmission. There is not a policeman in sight. Theoretically, the motor-'bus is free to whiz onward in its flight to the ...
— The Author's Craft • Arnold Bennett

... the physics labs was operating on the differential ability of various gas molecules to "leak" through plastic membranes under pressure, causing separation of the various molecular constituents of the atmosphere; shunting carbon dioxide off in one direction, and returning oxygen and the inert nitrogen and other gases back to the ...
— Where I Wasn't Going • Walt Richmond

... people said it—that young Dan Tugwell was even a quarter of a sheet in the wind, when he steered his way home. His head was as solid as that of his father; which, instead of growing light, increased in specific, generic, and differential gravity, under circumstances which tend otherwise, with an age like ours, that insists upon sobriety, without allowing practice. All Springhaven folk had long practice in the art of keeping sober, and if ever a man walked ...
— Springhaven - A Tale of the Great War • R. D. Blackmore

... Sainte-Beuve,[15] as he grew older, came to regard all experience as a single great book, in which to study for a few years ere we go hence; and it seemed all one to him whether you should read in Chapter xx., which is the differential calculus, or in Chapter xxxix., which is hearing the band play in the gardens. As a matter of fact, an intelligent person, looking out of his eyes and hearkening in his ears, with a smile on his face all the time, will get more true education than ...
— Essays of Robert Louis Stevenson • Robert Louis Stevenson

... nonplussed; she would as soon have wrestled with the differential calculus. "Why, dear me," she stammered, "there's Alice; she never came out, and I don't see but what she's got along all right: good home, nice husband, and everything she wants. ...
— With the Procession • Henry B. Fuller

... herniae, where the bowel has made its escape through the triangle of Hesselbach (Fig. XXXII. ), and passed through the conjoint tendon straight to the external ring, the epigastric artery will be found on the outside of the neck of the sac. In recent herniae the differential diagnosis is comparatively easy, but in those of old standing and large size, in which the obliquity of the canal has been much diminished, it is almost impossible to tell of what kind the hernia originally was, and consequently to determine ...
— A Manual of the Operations of Surgery - For the Use of Senior Students, House Surgeons, and Junior Practitioners • Joseph Bell

... a peculiar case of whole and part (cf. chaps. xxi.-ii.-iii.). Sometimes a term connotes all the attributes that another does, and more besides, which, as distinguishing it, are called differential. Thus 'man' connotes all that 'animal' does, and also (as differentiae) the erect gait, articulate speech, and other attributes. In such a case as this, where there are well-marked classes, the term whose connotation is included in the others' is called a Genus of that Species. ...
— Logic - Deductive and Inductive • Carveth Read

... concerned mainly Great Britain. Presumably it was profitable on both sides, for all trade is barter. In any event, Great Britain has never raised a tariff wall against it, never protected her traders by a single differential duty. She has risen above the idea that by tariff exactions the foreigners can be made to pay the sages. As for envy of German commerce, who ever heard of an Englishman ...
— Popular Science Monthly Volume 86

... was likewise a tolerable scholar, a detestable poet, an intriguing politician, and a corrupt financier. He was regularly in the pay of Sir Thomas Gresham, to whom he furnished secret information, for whom he procured differential favors, and by whose government he was rewarded by gold chains and presents of hard cash, bestowed as secretly as the equivalent was conveyed adroitly. Nevertheless, although his venality was already more than suspected, and although his peculation, during his ...
— The Rise of the Dutch Republic, 1555-1566 • John Lothrop Motley



Words linked to "Differential" :   differential limen, pinion and crown wheel, maths, partial derivative, pinion and ring gear, differentiation, reckoning, difference, figuring, curvature, mathematics, differential equation, bevel gear, partial, computation, calculation, math



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