Word Finder - impulses

definition

A thrust; a push; a sudden force that impels.

definition

A wish or urge, particularly a sudden one prompting action.

example

The impulse to learn drove me to study night and day.

definition

The integral of force over time.

example

The total impulse from the impact will depend on the kinetic energy of the bullet.

Mechanism is that which obeys impulses from outside.

I regard my pupil as a free and active being, whose own spontaneous impulses must be my surest guide.

It could readily ascend the sides of the room by short impulses, like a squirrel, which it resembled in its motions.

And the impulses felt by a single person are always magnified in a crowd.

In the ripe perfection of humanity, the two impulses will be perfectly adjusted.

He has to resist the temptations of the body, keeping it under strict control, and with the eye of the soul undimmed by corporeal wants and impulses, contemplate God the supreme good, and live a life according to reason.

Besides this most important contribution to the general fabric of dynamical science, we owe to Lagrange several minor theorems of great elegance, - among which may be mentioned his theorem that the kinetic energy imparted by given impulses to a material system under given constraints is a maximum.

The discoveries of the separate paths of sensory and motor impulses in the spinal cord, and consequently of the laws of reflex action, by Charles Bell and Marshall Hall respectively, in their illumination of the phenomena of nervous function, may be compared with the discovery in the region of the vascular system of the circulation of the blood; for therein a key to large classes of normal and aberrant functions and a fertile principle of interpretation were obtained.

That is to say, in tracing back the later acquisitions of civilization to impulses which are as old as the dawn of primitive culture, he did not, as the modern evolutionist does, lay stress on the superiority of the later to the earlier stages of human development, but rather became enamoured of the simplicity and spontaneity of those early impulses which, since they are the oldest, easily come to look like the most real and precious.

In opposition to the general spirit of the 18th century he saw, by means of his historic sense, the naturalness of religion, its relation to man's wants and impulses.

Under the impulses which came from these various sides Martineau's mind lived and moved, and as they successively rose he promptly, by appreciation or criticism, responded to the dialectical issues which they raised.

He had a sprightly wit, some delicacy of feeling, and some generous impulses which made him amiable.

He seems to have held that virtue consisted in the direction of activity towards the satisfaction of the natural impulses.

Until the vibrations of a source have a frequency in the neighbourhood of 30 per second the ear can hear the separate impulses, if strong enough, but does not hear a note.

It is not easy to determine the exact point at which the impulses fuse into a continuous tone, for higher tones are usually present with the deepest of which the frequency is being counted, and these may be mistaken for it.

His father intended him for the law, but his impulses towards an artistic career were irresistible.

Shall we resign our traditional belief that the greater part of the world is mere body, but that its general adaptability to conscious organisms proves its creation and government by God, and take to the new hypothesis, which, by a transfer of design from God to Nature, supposes that everything physical is alive, and conducts its life by psychical impulses of its own?

If he is to be believed, at the bottom of all organic evolution organic impulses becoming habits produce structural changes, which are transmitted by heredity; and as an impulse thus gradually becomes secondarily automatic, the will passes to higher activities, which in their turn become secondarily automatic, and so on.

But even so, have plants even those lowest impulses from feelings of pain or pleasure ?

A nature formed on great broad lines - a man of spontaneous impulses carrying away others as he himself was carried away, a genuine Latin in the whole of his being - he belongs to those imposing figures of the Italian Renaissance whose character is summarized in contemporary literature by the word terribile, which is best translated "extraordinary" or " magnificent."

In contrast to his predecessor, he was a man of slow and calm deliberation, and it was natural to suppose that he was little, if at all, accessible to impulses of the moment or to the persuasions of his entourage.

It may be held that every action is causally connected not only externally with the sum of the agent's environment, but also internally with his motives and impulses.

Bodily pleasures and all sensuous impulses must be abandoned as detrimental to the spiritual purity of the soul.

This duchy was soon reduced to obedience and was treated with consideration, and when the third anti-king, Egbert, margrave of Meissen, was murdered in 1090 there would have been peace if Germany had followed her own impulses.

Louis could not always follow his own impulses, but whenever he could he associated himself with the latter party.

By the growth of the cities in social, if not in political, importance the products of labor were more and more widely diffused; and it was easier than at any previous time for the nation to be moved by common ideas and impulses.

But when neurons are linked together it is found that nerve impulses will only pass from neuron A to neuron B, and not from neuron B to neuron A; that is, the transmission of the excited state or nervous impulse, although possible in each neuron both up and down its own cell branches, is possible from one nerve cell to another in one direction only.

That direction is the direction in which the nerve impulses flow under the conditions of natural life.

This trophic influence which one neuron exerts upon others, or upon the cells of an extrinsic tissue, such as muscle, is exerted in that direction which is the one normally taken by the natural nerve impulses.

It seems, especially in the case of the nexus between certain neurons, that the influence, loss of which endangers nutrition, is associated with the occurrence of something more than merely the nervous impulses awakened from time to time in the leading nerve cell.

A continuous lesser "change" or stream of changes sets through the neuron, and is distributed by it to other neurons in the same direction and by the same synapses as are its nerve impulses.

Stretching of the muscles antagonistic to the extensors - namely, of the flexor muscles - reduces the jerk by inhibiting the extensor spinal nerve cells through the nervous impulses generated by the tense flexor muscles.

Frederick, however, had free and generous impulses which could not be restrained by the sternest system.

The third, gathering together the more revolutionary impulses, expanded into that complex movement called Anabaptism - which spread over western Europe from England to Poland and from Scandinavia to northern Italy, and endured a long and sanguinary persecution at the hands of the civil authorities in most European countries.

If two masses m1, nil moving in the same straight line impinge, with the result that the velocities are changed from u1, u2, to ui, ui, then, since the impulses on the two bodies must be equal and opposite, the total momentum is unchanged, i.e.

The total impulse in any finite interval of time is the integral of the impulses corresponding to the infinitesimal elements 3t into which the interval may be subdivided; the summation of which the integral is the limit is of course to be understood in the vectorial sense.

The preceding formulae are sufficient for the, treatment of instantaneous impulses.

And a continuous force may be regarded as the limit of a succession of infinitesimal instantaneous impulses.

It may indeed be said in general that what is true of France is likewise true of all countries which felt the artistic impulses of the Renaissance.

This led Clerk Maxwell to frame his theory of electro-dynamics, in which electrical impulses were assumed to be transmitted through the ether by waves.

This Simon de Vries was a youth of generous impulses and of much promise.

But it was unquestionably from Marcionite impulses that the new sects of the Paulicians and Bogomils arose; and in so far as the western Cathari, and the antinomian and anticlerical sects ' Marcion was the earliest critical student of the New Testament canon and text.

He was a man of varied culture, of large breadth and liberality of views, of generous impulses, of great gentleness and courtesy of manner, combined with equal firmness of purpose and energy of action.

It is this latter fact which has led many students of human character to state that men do in fact aim at the gratification of their personal desires and impulses.

We miss the graces and consolations of faith; we have human efforts and ambitions, but they are unimpregnated with divine impulses and heavenly aspirings.

To the Indians he preached through an interpreter, and their interests he boldly and successfully defended by attacking the whites 1 Edwards recognized the abuse of impulses and impressions, opposed itinerant and lay preachers, and defended a well-ordered and well-educated clergy.

Similarly, logic, so far as it is an art of thought or a doctrine of fallacies, and ethics, so far as it is occupied with a natural history of impulses and moral sentiments, do neither of them belong, except by courtesy, to the philosophic province.

The change in direction of the air when striking a flat surface such as the side of a building will form a cushion to diminish the effects of impulses and shocks from local gusts.

Jouffroy, however, always kept firm to the early - the French and Scottish - impulses of Cousin's teaching.

Though not destitute of good impulses Lancaster was hasty, improvident and obstinate; he was unfortunate in his choice of friends, for he allied himself to all his fathers unscrupulous dependents.