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Acceleration   Listen
noun
Acceleration  n.  The act of accelerating, or the state of being accelerated; increase of motion or action; as, a falling body moves toward the earth with an acceleration of velocity; opposed to retardation. "A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration."
(Astr. & Physics.)
Acceleration of the moon, the increase of the moon's mean motion in its orbit, in consequence of which its period of revolution is now shorter than in ancient times.
Acceleration of the tides and retardation of the tides. See Priming of the tides, under Priming.
Diurnal acceleration of the fixed stars, the amount by which their apparent diurnal motion exceeds that of the sun, in consequence of which they daily come to the meridian of any place about three minutes fifty-six seconds of solar time earlier than on the day preceding.
Acceleration of the planets, the increasing velocity of their motion, in proceeding from the apogee to the perigee of their orbits.






Collaborative International Dictionary of English 0.48








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"Acceleration" Quotes from Famous Books



... appreciably quickened; by either of which means nature would be enabled to make up the deficiency. It is true that it is difficult to count one's own respirations, but the average is considered in a healthy man to be eighteen in a minute; in my own case it is sixteen, an acceleration of which by three or four could not have been overlooked, in the repeated trials I made at Dorjiling, and still less the eight additional inhalations required at 15,000 feet to make up for the deficiency of oxygen in ...
— Himalayan Journals (Complete) • J. D. Hooker

... Gallipoli episode proved that the Turk still possesses a 'notable horn' of strength. Historically speaking, this drying up of Ottoman power has been going on for the past century; the last two years have witnessed a great acceleration of the process, and there can be no doubt that complete desiccation ...
— Crome Yellow • Aldous Huxley

... were studded with buttons and a series of small, finger-operated, knobs. All drive, communication and fire fighting controls for the massive vehicle were centered in the knobs and buttons on the seat arms, while acceleration and braking controls were duplicated in two footrest pedals beneath ...
— Code Three • Rick Raphael

... .42 magnomatic, working on an electrical acceleration of the slug by electromagnetic rings in the thick barrel. It was soundless except for a legal built-in radio yeep that announced its firing and number to the police emergency receivers. Beldman's gun was another maggy of the same make but heavier with a wide-mouthed barrel apparently throwing ...
— The Man Who Staked the Stars • Charles Dye

... used to this sort of thing. He was used to a taped acceleration-deceleration program which lifted a big ship, aimed it, and went through the trip all automatically. All he had ever had to do was drop it the last few hundred feet ...
— Anchorite • Randall Garrett

... lessening of party discipline and a greater freedom and sincerity in discussion result in an acceleration of the rate of legislation, and as a proportional system favours these conditions it would materially assist the process ...
— Proportional Representation - A Study in Methods of Election • John H. Humphreys

... disorder is commonly shown by retardation of thought and motion, the excited stage by pressure of activity and acceleration of thought. In the so-called "flight of ideas" words succeed each other with incredible rapidity, without goal idea, but each word suggesting the next by sound or other ...
— Why Worry? • George Lincoln Walton, M.D.

... demonstration by the statistics jotted down with the utmost precision during the Readings, as to the fluctuations of the Reader's pulse immediately before and immediately after each of his appearances upon the platform, mostly two, but often three, appearances in a single evening. The acceleration of his pulse has, to our knowledge, upon some of these occasions been something extraordinary. Upon the occasion of his last and grandest Reading of the Murder, for example, as he stepped upon the ...
— Charles Dickens as a Reader • Charles Kent

... it steadied; rose with terrific acceleration. And Chris hauled himself up onto the undercarriage and clung to one of the wheel-stanchions, breathing, hard, hidden by the fuselage ...
— Raiders Invisible • Desmond Winter Hall

... ceremony and feast are in this case held one or two days after the funeral, the acceleration in the case of a chief being necessary in consequence of the retention of the corpse above ground and the foul smell which immediately begins to emanate from it. This feast is on a very large scale, though here again only one community ...
— The Mafulu - Mountain People of British New Guinea • Robert W. Williamson

... concerns us, because the religious superstition, which had previously caused men to seek in a conscious supreme energy the effective motor in human affairs, had waned, and the problem presented was reduced to the operation of that acceleration of movement by the progress of applied science which always has been, and always must be, the prime cause of the quickening of economic competition either as between communities or as between individuals. ...
— The Emancipation of Massachusetts • Brooks Adams

... woods, with the warm hum of insects and the soft summer, glancing sunshine. And all of you who know the beauties of Carlsbad, or indeed any other of those Bohemian spas, can just picture how agreeable was their walk, and how conducive to amiable discussion and the acceleration of friendship. Henry tried to get her to tell him some more of the secrets of her countrywomen, but she would not be serious. She was in a merry mood, and turned the fire into the enemy's camp, making him ...
— The Man and the Moment • Elinor Glyn

... took a turn on two wheels, and immediately something happened, seemingly some attempt to stop it was made. Vociferous voices hailed it, only to induce an augmented bellow of the exhaust with an instantaneous acceleration of impetus. Then something was struck and tossed aside as a bull might toss a dog—a dark shape whirling and flopping hideously; and an agonized screaming made the girl cower, sick with horror, and cover her ears with ...
— Red Masquerade • Louis Joseph Vance

... The acceleration of my torpid pulse in the keen fight with the wind, whose violence was almost equal to that of a tornado, and the familiar faces of the bright stars above me, I felt as a blessed relief. I ran not knowing whither, and when I halted, the square outline of the house was lost in the alder bushes. ...
— Selected Stories • Bret Harte

... already bereft of sense, and evidently fast passing from life, lay one "all lovely to the last." Mrs. Sinclair's health, delicate for years, had rapidly failed in the last few months, till her anxious husband and child, aware that a moment's acceleration of the pulse, a moment's quickening of the breath from whatever cause, might snatch her from their arms, learned to modulate every tone, to guard every look and movement in her presence. But they could not shut from her ...
— Evenings at Donaldson Manor - Or, The Christmas Guest • Maria J. McIntosh

... in the seminar. Freddy Dickson, an earnest, anemic youth, seemed to be always striving for greater acceleration and never gaining it; or as Pudge put it, "The trouble with Freddy is that he's always shifting gears." Larry Stillwell, the last man, was a dark, handsome youth with exceedingly regular features, pomaded hair parted in the center and shining sleekly, fine teeth, ...
— The Plastic Age • Percy Marks

... the race of the pretty woman behind him, leaped impatiently forward. But pulled together by the fine and firm fingers that seemed to guide rather than check his exuberance, he presently struck into the long, swinging pace of his kind, and kept it throughout without "break" or acceleration. Over the paved streets the light buggy rattled, and the slender shafts danced around his smooth barrel, but when they touched the level high road, horse and vehicle slipped forward through the night, a swift and noiseless phantom. Mrs. Tucker ...
— Frontier Stories • Bret Harte

... fall; the depth of the drain, and consequent "head," or pressure, of the water; the different effects of different soils in retarding the flow of the water to the drain; the different degrees to which angles in the line of tile affect the flow; the degree of acceleration of the flow which is caused by greater or less additions to the stream at the junction of branch drains; and other considerations, arising at every step of the calculation, render it impossible to apply delicate mathematical rules to work which is, at best, rude and unmathematical in the extreme. ...
— Draining for Profit, and Draining for Health • George E. Waring

... preparing in May as the Russian contribution to the combined attack on the Central Empires. It was not timed to take place until the end of June. But the Austrian pressure on Italy from the Trentino seems to have forced an acceleration which the German attack on Verdun failed to extort from the Western Allies; and on 3 June a bombardment began on the whole of the Russian front from the Pripet marshes southwards to the Rumanian border. ...
— A Short History of the Great War • A.F. Pollard

... not easy to suppress the doubt whether the permanent interests of mankind would not have been best served by Napoleon's success in 1812. His empire had already attained dimensions that rendered its ultimate disruption certain: less depended upon the postponement or the acceleration of its downfall than on the order of things ready to take its place. The victory of Napoleon in 1812 would have been followed by the establishment of a Polish kingdom in the provinces taken from Russia. From no generosity in ...
— History of Modern Europe 1792-1878 • C. A. Fyffe

... my precocity for science a very successful impetus and left me at his death fully in possession of the ideas and projects he cherished. Amongst these projects, one partially realized, was the acceleration of plant growth by means of electric light, ...
— The Certainty of a Future Life in Mars • L. P. Gratacap

... with Professor Hyatt, of Boston, U.S., originated in the reference to his and Professor Cope's theories of acceleration and retardation, inserted in the sixth edition of the "Origin," ...
— More Letters of Charles Darwin - Volume I (of II) • Charles Darwin

... have come about in less than a century; most of them in a quarter of a century. Multiply them by the years of another century, and who shall say that the events I depict are impossible? There is an acceleration of movement in human affairs even as there is in the operations of gravity. The dead missile out of space at last blazes, and the very air takes fire. The masses grow more intelligent as they grow more wretched; and more capable of cooperation ...
— Caesar's Column • Ignatius Donnelly

... Motion % 274. Velocity. — N. velocity, speed, celerity; swiftness &c. adj.; rapidity, eagle speed; expedition &c. (activity) 682; pernicity|; acceleration; haste &c. 684. spurt, rush, dash, race, steeple chase; smart rate, lively rate, swift rate &c. adj.; rattling rate, spanking rate, strapping rate, smart pace, lively pace, swift pace, rattling pace, spanking pace, strapping pace; round pace; flying, flight. lightning, ...
— Roget's Thesaurus

... at the exposition to show the people what's taking place in their part of the solar system. There'll also be an amusement section." Strong chuckled. "I've seen pictures of some of the tricks and rides they've developed to entertain the younger generation. Believe me, I'd rather take full acceleration on a rocket ship than ride ...
— On the Trail of the Space Pirates • Carey Rockwell

... over 100. In the latter, in which a sac is still present, the pulse rate varies from 110 to 130. In each case the condition has now existed twelve months. My attention once directed to this point, I noted a similar acceleration of the pulse in the case of these aneurisms elsewhere; thus in a femoral aneurism the rate was 120, and in an axillary varix of twenty years' standing which came under my observation the pulse rate varied from 110 to 120, according to the position of ...
— Surgical Experiences in South Africa, 1899-1900 • George Henry Makins

... He laid the responsibility squarely and dramatically where it belonged. It is impossible to overemphasize what a tremendous acceleration Mr. Malone's fine, solitary and generous act gave to the speedy break-down of the Administration's resistance. His sacrifice ...
— Jailed for Freedom • Doris Stevens

... always had a queer little twist towards metaphysics in my mind. I have always been given to paradoxes about space and time, and it seemed to me that Gibberne was really preparing no less than the absolute acceleration of life. Suppose a man repeatedly dosed with such a preparation: he would live an active and record life indeed, but he would be an adult at eleven, middle-aged at twenty-five, and by thirty well on the road to senile decay. It seemed to me that so far Gibberne was ...
— Twelve Stories and a Dream • H. G. Wells

... statesmen to avoid the suspicion that, on the sea as on land, the Germans meant by liberty the right to unlimited self-assertion. Common prudence dictated close attention to the German Navy Laws; especially as they proved capable of unexpected acceleration. The 'Two Power' standard, under the stress of German competition, became increasingly difficult to maintain, and English Liberals were inclined to denounce it as wasteful of money. But, when a Liberal Government tried the experiment of economizing on the Navy (1906-8), ...
— Why We Are At War (2nd Edition, revised) • Members of the Oxford Faculty of Modern History

... reaction. The latter might be either a simultaneous modification of depth and of rapidity or of either of these. The circulatory reaction was a peripheral vasoconstriction with diminished fullness of pulse and slight acceleration of cardiac rhythm; there was never any distinct slowing of heart under the influence of music. Guibaud remarks that when people say they feel a shudder at some passage of music, this sensation of cold finds its explanation in the production of a peripheral ...
— Studies in the Psychology of Sex, Volume 4 (of 6) • Havelock Ellis

... velocity—being out of sight in a very few seconds. I did not at first know what to make of this extraordinary phenomenon; not being able to believe that my rate of ascent had, of a sudden, met with so prodigious an acceleration. But it soon occurred to me that the atmosphere was now far too rare to sustain even the feathers; that they actually fell, as they appeared to do, with great rapidity; and that I had been surprised by the united velocities of their ...
— The Works of Edgar Allan Poe - Volume 1 (of 5) of the Raven Edition • Edgar Allan Poe

... ever does cause such dilatation—that is, ever does become a cause of haemorrhage. The clinical facts for such a supposition are those in which the occurrence of an emotion is followed by flushing of the face, acceleration of the pulse, hot or cold perspirations, phenomena all indicative of dilatation of the blood-vessels, with temporary paralysis of their nerves and of their vaso-motor centre. It is not proved, however, that the emotions ...
— The Education of American Girls • Anna Callender Brackett

... said Bors. He could see no sense in this, but he went on. "Allowing for acceleration and deceleration in setting our missiles on targets. Allowing for the motion of the targets. Again we have computers for this. In practice they're too good! If we send a missile at a Mekinese ship, they set a computer on it, and it computes ...
— Talents, Incorporated • William Fitzgerald Jenkins

... of the human world to-day is the tremendous commercial machine which is grinding out at a marvellous acceleration the smaller and meaner sort of man, the middle class, the average man, "the damned, compact, liberal majority," to use the words of Ibsen, and the world daily becomes "more Chinese". The rocks are fraying one another down to desert sand, and mankind becomes ...
— A Tramp's Sketches • Stephen Graham

... car was light, a diffused radiance from no apparent source, the whole air was glowing about them. And beneath their feet the car moved slowly but with a constant acceleration that built up to tremendous speed. Then that slackened, and Sykes and McGuire clung to each other for support while the car that had been shot like a projectile came ...
— Astounding Stories of Super-Science, December 1930 • Various

... acceleration of numbers in the logs that came hurtling lakeward. Now at shorter intervals arose the grinding sound of their arrival, the ponderous splash as each leaped to the water. It was a good thing, she surmised—for Charlie Benton. She could not see where it made much ...
— Big Timber - A Story of the Northwest • Bertrand W. Sinclair

... subject to typhoons the more modern chimneys were probably designed to withstand winds of high velocity. It is also probable that most of the recently constructed chimneys as well as the more modern buildings were constructed to withstand the acceleration of rather severe earthquakes. Since the bombs were exploded high in the air, chimneys relatively close to X were subjected to more of a downward than a lateral pressure, and consequently the overturning moment was much less than ...
— The Atomic Bombings of Hiroshima and Nagasaki • United States

... acceleration of every pulse; a wild stimulation of every nerve. I felt myself being lifted above the world—close to the threshold of the high gods—soon their essence and their power would stream out into me! I glanced at Larry. ...
— The Moon Pool • A. Merritt

... hundred years ago. Even at the present day, we habitually use the Ptolemaic phraseology. Not only do we speak of "sunrise" and "sunset," but astronomers in strictly technical papers use the expression, "acceleration of the sun's motion" when "acceleration of the earth's motion" ...
— The Astronomy of the Bible - An Elementary Commentary on the Astronomical References - of Holy Scripture • E. Walter Maunder

... reason to believe that 1849 will witness a diminution in the rate at which this extraordinary process of depletion is going forward; on the contrary, there is every symptom of its probable acceleration."—(Morning Chronicle, ...
— A Letter from Major Robert Carmichael-Smyth to His Friend, the Author of 'The Clockmaker' • Robert Carmichael-Smyth

... activity, we shall see a dam erected against the current which, in carrying women out of the struggle for existence, carries them out of the world's mental strife. If it is the one toward frivolity, we shall see simply an acceleration of that current and a quicker and larger departure from all those habits of toil and service which produce power ...
— Stories from Everybody's Magazine • 1910 issues of Everybody's Magazine

... that by electro-magnetism, your salad shall be grown from the seed, whilst your fowl is roasting for dinner: it is a symbol of our modern aims and endeavors,—of our condensation and acceleration of objects; but nothing is gained: nature cannot be cheated: man's life is but seventy salads long, grow they swift or grow ...
— The Autocrat of the Breakfast-Table • Oliver Wendell Holmes, Sr. (The Physician and Poet not the Jurist)

... races or families can improve if brought in contact with the most helpful influences of other races or families? Has that experiment ever been fairly tried? Do not results with hardened convicts, with Indian and negro pupils, suggest that there may be an immense acceleration of ...
— The Chief End of Man • George S. Merriam

... cold and methodical people of former days. So, too, when they remained at home, some working with their hands and others with their heads,—these doing nothing, those thinking nothing,—their private life was silent, inert, vegetating as before. No quarrels, no household squabbles, no acceleration in the beating of the heart, no excitement of the brain. The mean of their pulsations remained as it was of old, from ...
— A Winter Amid the Ice - and Other Thrilling Stories • Jules Verne

... irritation and the beginning of a responsive movement can be measured within one one-thousandth of a second. According to Aschaffenburg,[12] under the influence of even very small doses of alcohol this reaction period is disturbed and shortened. It is below the normal, the acceleration being attained at the expense of precision and reliability. Indeed, the reaction is often premature, and constitutes a false reaction—"the judgment of the reason comes limping ...
— How to Live - Rules for Healthful Living Based on Modern Science • Irving Fisher and Eugene Fisk

... interaction between the viscera two systems were elaborated: a younger system of direct contacts, the nerves, and nerve cells, through which influences could be conducted for the stimulation, acceleration, retardation or inhibition of an energy process in them; and the older, the endocrine gland association, for the production of chemical substances to act as messengers to be sent from one viscus to another, and also to the nerves, through the blood ...
— The Glands Regulating Personality • Louis Berman, M.D.

... the chaise top pricked up his ears and cast a significant look at the plug hat on the platform. Plug hat on the platform seemed to recognize some affinity in plug hat on the van, and there was an acceleration of mutual interest when the parrot croaked ...
— Ainslee's, Vol. 15, No. 5, June 1905 • Various

... wings. It was strictly practical. Against accidental catchings in machinery, the trousers were narrow and tucked into ten-inch soft leather boots, and the wide leather belt had flat loops for the attachment of special equipment. Its width was a brace against the strains of acceleration. Sally had had much to do with ...
— Space Tug • Murray Leinster

... With dangerous acceleration the gigantic body rose, and from outside there grew a moaning which was quickly a shrieking—a terrible, maddened sound as of a Titan dying in agony—the sound of the cloven atmosphere. Twenty miles of rock were hurled out by the firm hand on the space-stick, and that hand ...
— The Passing of Ku Sui • Anthony Gilmore

... was apparent that he was speaking as much to himself as to McGuire. "Plumb, raving crazy!... Yet that ship did go straight up out of sight—an acceleration in the upper air beyond anything we know. It might be—" And he, too, stopped at the actual voicing of the wild surmise. He shook his head sharply as if to rid it ...
— Astounding Stories of Super-Science, November, 1930 • Various

... glasses for that purpose, the weight of air, the possibility or impossibility of vacuities and nature's abhorrence thereof, the Torricellian experiment [25] in quicksilver, the descent of heavy bodies and the degree of acceleration therein, with divers other things of like nature, some of which were then but new discoveries, and others not so generally known and embraced as now they are; with other things appertaining to what hath been called the ...
— Autobiography and Selected Essays • Thomas Henry Huxley

... that day the king with the queen and dauphin went to the Champ de Mars, and it was with difficulty that the soldiers saved them from the rage of the rabble. The fermentation of the public mind received a fearful acceleration, when it was discovered that the Prussians and Austrians were advancing upon the capital, under the command of the Duke of Brunswick. All France was put in motion thereby, and thousands of hot-brained youth resorted to the capital to join the already overwhelming rabble ...
— The History of England in Three Volumes, Vol.III. - From George III. to Victoria • E. Farr and E. H. Nolan

... accelerated movement; the velocity increases in equal degrees in equal consecutive divisions of time at a rate that in this country gives the velocity attained at the end of a second as 981 centimeters (32.2 feet) per second. The number 981 defines the "acceleration in the field of gravitation," and this field is fully characterized by that single number; with its help we can also calculate the movement of an object hurled out in an arbitrary direction. In order to measure the acceleration ...
— The Einstein Theory of Relativity • H.A. Lorentz



Words linked to "Acceleration" :   getaway, hurrying, alteration, change, angular acceleration, deceleration, accelerate, quickening, speeding, pickup, natural philosophy, acceleration unit, speedup, precipitation



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