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vortices

vortices

vortices Sentence Examples

  • Such a reduced and impoverished star is a planet; and the several planets of our solar system are the several vortices which from time to time have been swept up by the central sun-vortex.

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  • Such a reduced and impoverished star is a planet; and the several planets of our solar system are the several vortices which from time to time have been swept up by the central sun-vortex.

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  • In course of time the star, with its expansive force diminished, suffers encroachments from the neighbouring vortices, and at length they catch it up. If the ' Princip. part ii.

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  • Such in mere outline is the celebrated theory of vortices, which for about twenty years after its promulgation reigned supreme in science, and for much longer time opposed a tenacious resistance to rival doctrines.

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  • At a time when the Cartesian system of vortices universally prevailed, he found it necessary to investigate that hypothesis, and in the course of his investigations he showed that the velocity of any stratum of the vortex is an arithmetical mean between the velocities of the strata which enclose it; and from this it evidently follows that the velocity of a filament of water moving in a pipe is an arithmetical mean between the velocities of the filaments which surround it.

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  • If other vortices are present, any one may be supposed to move with the velocity due to the others, the resultant stream function being = gy m log r =log IIrm; (9) the path of a vortex is obtained by equating the value of 1P at the vortex to a constant, omitting the rm of the vortex itself.

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  • For example, a pair of equal opposite vortices, moving on a line parallel to a plane boundary, will have a corresponding pair of images, forming a rectangle of vortices, and the path of a vortex will be the Cotes' spiral r sin 20 = 2a, or x-2+y-2=a-2; (io) this is therefore the path of a single vortex in a right-angled corner; and generally.

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  • 99, p. 167), using Froude's turbine to obtain the highly resisting spiral vortices, and arranging passages in the casing for the entry of water at the hub of the wheel and its exit at the circumference.

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  • The air-ways k, k, in the fixed vanes establish communication between the cores of the vortices and the atmosphere.

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  • The study of these vortices has led to the discovery of a magnetic field in sun-spots, apparently caused by electric convection in the vortices.

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  • They too were once vortices, swallowed up by some other, which at a later day fell a victim to the sweep of our sun.

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  • Whilst Protestant opponents put him in the list of atheists like Vanini, and the Catholics held him as dangerous as Luther or Calvin, there were zealous adherents who ventured to prove the theory of vortices in harmony with the book of Genesis.

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  • But detailed studies of the circulation of the water in any small area show deviations from the calculated results that are to be expected: thus Nansen's investigation of the Norwegian sea shows that the main directions of streaming of the water are broken up by numerous large and small vortices.

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  • We might thus examine a structure formed of an aggregation of very thin vortex rings, which would move across the fluid without sensibly disturbing it; on the other hand, if formed of stronger vortices, it may transport the portion of the fluid that is within, or adjacent to, its own structure along with it as if it were a solid mass, and therefore also push aside the surrounding fluid as it passes.

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  • Showing right and left-hand Sun-spot vortices.

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  • Thus there is no vortex lattice, indeed no vortices at all.

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  • quantized vortices in superfluid helium.

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  • Studies of vortices in other superconductors indicate that they can form a sort of " lattice " configuration.

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  • vortex lattice, indeed no vortices at all.

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  • vortexpaddle, moved through the water, sheds vortices from its sides.

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  • The vortex patterns correspond to the intersection of the laser sheet with the trailing, helical vortices from the turbine blades.

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  • vortexs the wide-bodied aircraft that record the most strikes, as there are more surfaces on the aircraft to generate the vortices.

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  • vortexvapor trail is technically known as an aircraft wake vortices.

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  • vortexng the latter stages of landing, it is possible for aircraft vortices to make contact with roofs of properties close to the Airport.

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  • other whirlwinds The third grouping, other whirlwinds, includes those such as trailing vortices.

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  • Passing briefly over the conclusions arrived at in the Meditations, it deals in its second, third and fourth parts with the general c l principles of physical science, especially the laws of motion, with the theory of vortices, and with the phenomena of heat, light, gravity, magnetism, electricity, &c., upon the earth.

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  • As the movement of one particle in a closely-packed universe is only possible if all other parts move simultaneously, so that the last in the series steps into the place of the first; and as the figure and division of the particles varies in each point in the universe, there will inevitably at the same instant result throughout the universe an innumerable host of more or less circular movements, and of vortices or whirlpools of material particles varying in size and velocity.

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  • Taking for convenience a limited portion of the universe, we observe that in consequence of t he circular movement, the particles of matter have vortices.

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  • In course of time the star, with its expansive force diminished, suffers encroachments from the neighbouring vortices, and at length they catch it up. If the ' Princip. part ii.

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  • They too were once vortices, swallowed up by some other, which at a later day fell a victim to the sweep of our sun.

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  • Such in mere outline is the celebrated theory of vortices, which for about twenty years after its promulgation reigned supreme in science, and for much longer time opposed a tenacious resistance to rival doctrines.

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  • If Descartes had contented himself with thus explaining the phenomena of gravity, heat, magnetism, light and similar forces by means of the molecular movements of his vortices, even such a theory would have excited admiration.

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  • Whilst Protestant opponents put him in the list of atheists like Vanini, and the Catholics held him as dangerous as Luther or Calvin, there were zealous adherents who ventured to prove the theory of vortices in harmony with the book of Genesis.

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  • Of Cartesianism towards the close of the 17th century the only remnants were an overgrown theory of vortices, which received its death-blow from Newton, and a dubious phraseology anent innate ideas, which found a witt y executioner in Locke.

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  • But detailed studies of the circulation of the water in any small area show deviations from the calculated results that are to be expected: thus Nansen's investigation of the Norwegian sea shows that the main directions of streaming of the water are broken up by numerous large and small vortices.

    0
    0
  • At a time when the Cartesian system of vortices universally prevailed, he found it necessary to investigate that hypothesis, and in the course of his investigations he showed that the velocity of any stratum of the vortex is an arithmetical mean between the velocities of the strata which enclose it; and from this it evidently follows that the velocity of a filament of water moving in a pipe is an arithmetical mean between the velocities of the filaments which surround it.

    0
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  • If other vortices are present, any one may be supposed to move with the velocity due to the others, the resultant stream function being = gy m log r =log IIrm; (9) the path of a vortex is obtained by equating the value of 1P at the vortex to a constant, omitting the rm of the vortex itself.

    0
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  • For example, a pair of equal opposite vortices, moving on a line parallel to a plane boundary, will have a corresponding pair of images, forming a rectangle of vortices, and the path of a vortex will be the Cotes' spiral r sin 20 = 2a, or x-2+y-2=a-2; (io) this is therefore the path of a single vortex in a right-angled corner; and generally.

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  • 99, p. 167), using Froude's turbine to obtain the highly resisting spiral vortices, and arranging passages in the casing for the entry of water at the hub of the wheel and its exit at the circumference.

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  • The air-ways k, k, in the fixed vanes establish communication between the cores of the vortices and the atmosphere.

    0
    0
  • We might thus examine a structure formed of an aggregation of very thin vortex rings, which would move across the fluid without sensibly disturbing it; on the other hand, if formed of stronger vortices, it may transport the portion of the fluid that is within, or adjacent to, its own structure along with it as if it were a solid mass, and therefore also push aside the surrounding fluid as it passes.

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  • In this, the most memorable of Kepler's multifarious writings, two of the cardinal principles of modern astronomy - the laws of elliptical orbits and of equal areas - were established (see Astronomy: History); important truths relating to gravity were enunciated, and the tides ascribed to the influence of lunar attraction; while an attempt to explain the planetary revolutions in the then backward condition of mechanical knowledge produced a theory of vortices closely resembling that afterwards adopted by Descartes.

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  • Most of the solar vortices indicate clockwise rotation in the southern hemisphere and counter-clockwise rotation in the northern, as in the case of terrestrial cyclones.

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  • The study of these vortices has led to the discovery of a magnetic field in sun-spots, apparently caused by electric convection in the vortices.

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  • Showing right and left-hand Sun-spot vortices.

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  • Kepler divined its possibility; but his thoughts, derailed (so to speak) by the false analogy of magnetism, brought him no farther than to the .rough draft of the scheme of vortices expounded in detail by Rene Descartes in his Principia Philosophiae (1644).

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  • This notion, it is plain, tended rather towards Descartes's theory of vortices than towards Newton's theory of gravitation.

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  • With H E Hall, he made the experimental discovery of quantized vortices in superfluid helium.

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  • Studies of vortices in other superconductors indicate that they can form a sort of " lattice " configuration.

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  • The paddle, moved through the water, sheds vortices from its sides.

    0
    0
  • The vortex patterns correspond to the intersection of the laser sheet with the trailing, helical vortices from the turbine blades.

    0
    0
  • It is the wide-bodied aircraft that record the most strikes, as there are more surfaces on the aircraft to generate the vortices.

    0
    0
  • The vapor trail is technically known as an aircraft wake vortices.

    0
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  • During the latter stages of landing, it is possible for aircraft vortices to make contact with roofs of properties close to the Airport.

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  • Other whirlwinds The third grouping, other whirlwinds, includes those such as trailing vortices.

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  • This notion, it is plain, tended rather towards Descartes's theory of vortices than towards Newton's theory of gravitation.

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