A quantity of movement, or the dynamicaleffect of all the actions to which a body has been subjected for any length of time, was called a kinetic force.
That dynamical forces are likewise indispensable in science I think it would be quite superfluous to prove.
Aristotle viewed the solar system as a geometrical problem; Kepler and Newton converted the point of view into a dynamical one.
We now reach the period which is the culminating point of interest in the history of dynamical astronomy.
We are bound to admit that in the circumstances of the case, so long as there was no question of dynamical forces connecting the members of the solar system, his reasoning, as we should expect from such a man, is practical and sound.
It is now necessary to leave the subject of dynamical astronomy for a short time in order to give some account of work in a different direction originated by a contemporary of Kepler's, his senior in fact by seven years.
In the field of telescopic discovery beyond our solar system there is no one who has enlarged our knowledge so much as Sir William Herschel, to whom we owe the greatest discovery in dynamical astronomy among the stars--viz.
Since Kepler's day we have had a dynamical astronomy.
Plato's dictum demanding uniform circular motion for the planets, and the consequent evolution of the epicycle, which was fatal to any conception of a dynamical theory.
His experiments subsequent to 1843 on the dynamical equivalent of heat must be mentioned briefly.
This was the first determination of the dynamical equivalent of heat.
It will be our purpose in the following discussion to ascertain just what are these problems in dynamical biology and how far they have been answered.
It was inevitable that problems of life should come to the front, and that the study of life from the dynamical standpoint, rather than a statical, should ensue.
But historical geology alone could never have led to the dynamical phase of modern biology.
It is undoubtedly a fact that the rapidly developing ideas along the above mentioned lines of dynamical biology have, been potent factors in bringing about the adoption of evolution.
The actual power, on the contrary, is a mechanical force or dynamical effort capable of raising a given weight through a given distance in a given time, and of which the amount is ascertainable by scientific investigation.
Seeing, however, that the nominal power does not represent an invariable amount of dynamical efficiency, would it not be better to make the comparison with reference to the actual power?
The actual horse power being a dynamical unit, and the nominal horse power a measure of capacity of the cylinder, are obviously incomparable things.
Every organism constantly receives from the universe food and force, and as constantly restores in other forms the material and dynamical equivalents of what it receives, and finally itself goes to the sources whence it came.
The admission of the gray nerve cells of the brain, as the material substratum through which sensations are received and volitions returned, does not exclude the necessity of a dynamical cause for the metamorphosing phenomenon.
Calling the sum of the pressure and potential head the statical head, surfaces of constant statical and dynamical head intersect in lines on H, and the three surfaces touch where the velocity is stationary.
Pg512] The dynamical effect produced by any mechanical agent is expressed by the product of the resistance overcome and the space through which that resistance is moved.
And you can all see that we have only to imagine that many particles of the glass are rotating like gyrostats, and that magnetism has partially caused an allineation of their axes, to have a dynamical theory of Faraday's discovery.
A course of Lectures on the Steam Engine delivered to the students of Dynamical Engineering in the University of Pennsylvania.
It needs but little reflection to see that the distinctions which Kant draws between the mathematical and the dynamical principles must break down.
Kant seems to think that the fact that the dynamical principles relate to the existence of objects is a sufficient justification of their name.
Of that Commission Sir William Thomson is a valuable and valued member, from his intimate acquaintance with dynamical science and the theory of stability.
In the study of the theory of tidal evolution we must be mainly guided by a profound dynamical principle known as the conservation of the "moment of momentum.
It is not, however, possible to decide a dynamical question by merely superficial reasoning of this character.
The first step in the enquiry is to realise distinctly the dynamical conditions of the problem.
Such a state of things formed what a mathematician would describe as a case of unstable dynamical equilibrium.
This is not put forward as an obvious result; it depends upon a refined dynamical theorem.
We have invariably found that the dynamical phenomena of astronomy can be accounted for by the law of universal gravitation.
There are, however, grave dynamical reasons for doubting whether the conditions under which such a planet would exist could be made compatible with life in any degree resembling the life with which we are familiar.
We have already mentioned that the first epoch was one of unstability--it could not last; but this second state is one of dynamical stability.
This is, no doubt, a dynamical question of some difficulty, but it is easy to verify experimentally that it is the case.
Mayer and Joule, and placed the dynamicaltheory of heat and the fundamental principle of the conservation of energy in a position to command universal acceptance.
It can be made to imitate the motion of a spinning-top of which the point is placed in a smooth agate cup as in Maxwell's dynamical top (figs.
Maxwell's dynamical top, is provided with screws by which the centre of gravity can be brought into coincidence with the point of support.
Kant now adds that it is the dynamical continuity of the spatial world which enables us to apprehend the coexistence of its constituents.
Kant further attempts[1577] to distinguish between the mathematical and the dynamical by asserting that the dynamical antinomies are not concerned with the quantity of their object, but only with its existence.
Dynamical communion is the sufficient and necessary fulfilment of this demand.
In the sensible world, about which alone anything can be determined, the series of dynamical conditions forms neither a finite nor an infinite series.
That runs directly counter to the central thesis of the other proofs, that only in terms of dynamical relation is coexistence at all apprehensible.
It is also obscure owing to its employment of dynamical terms to denote the relation of apperception to self-consciousness.
It is there stated that "without dynamical communion even spatial community (communio spatii) could never be known empirically.
The dazzling whiteness of snow can hardly be attributed to bare rock; yet the dynamical theory of gases--as Dr.
It is difficult," says Sir John Herschell, "to form any conception of the dynamical state of such systems.
The Divine life infinitely transcends the dynamical life of the universe.
Universal attraction or universal repulsion must be the ultimate dynamical conception for the pure physicist.
The hypothesis which regards the Deity as no more than the dynamical life of the universe--an informing and organizing soul associated with matter--is naked Hylozoism.
One after another, nebulae condense into separate masses, which begin to revolve about each other in obedience to dynamical laws, and form systems of which our system is a matured example.
The final disclosure of modern science is the convertibility and homogeneity of all forms of physical energy--"a dynamical self-identification masked by transmigration.
Vito-dynamical theory of the origin of things, 299.
But the question may be here raised, Is not this identification of the dynamical life of the universe with God, Pantheism?
No mechanical work can be done by heat in a state of equilibrium; as a dynamical agent it is dead.
It is the bridge between the moral Court treatise and the novel, and, as such, all its aesthetic defects matter little in comparison with its dynamical value.
But, however this may be, it was the formal rather than the musical qualities which gave Euphues its dynamical importance in the history of English prose.
It was Lyly who made euphuism famous and therefore a power; and, despite the fact that he marks the culmination of the movement, he is the most dynamical of all the euphuists.
In opposition to the mechanical theory of the atomists, which explains forces from matter and makes them inhere in it, Kant holds fast to the dynamical view which he had early adopted (cf.
The first six of these fundamental concepts, which have no correlatives, constitute the mathematical, the second six, which appear in pairs, the dynamical categories.
Galvanism forms the transition to living nature, in which through the operation of the "copula" these threedynamical categories are raised to organic categories.
The case is different with the dynamical antinomies, where thesis and antithesis can both be true, in so far as the former is referred to things in themselves and the latter to phenomena.
But I, nevertheless, distinguish the two by the time relation of dynamical connection.
It may well be doubted whether there is a more beautiful chapter in the whole of mathematical philosophy than that which contains Hamilton's dynamical theory.
Here, again, in his search for the unknown law, Kepler had no accurate dynamical principles to guide his steps.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "dynamical" in a variety of sentences. We hope that you will now be able to make sentences using this word.
