Mathematical Papers of the Late George Green ...Macmillan and Company, 1871 - 336 من الصفحات |
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الصفحة ix
... Light in Crys- talline Media , " the principle of Conservation of Work is again assumed as a starting - point and ... polarization is shewn to follow , on the hypothesis that the vibrations constituting a plane - polarized ray are in the ...
... Light in Crys- talline Media , " the principle of Conservation of Work is again assumed as a starting - point and ... polarization is shewn to follow , on the hypothesis that the vibrations constituting a plane - polarized ray are in the ...
الصفحة 235
... light polarized in a plane perpendicular to the plane of inci- dence . Moreover , the disturbance excited in the second medium , when , in the case of total reflexion , it ceases to transmit a wave in the regular way , is represented by ...
... light polarized in a plane perpendicular to the plane of inci- dence . Moreover , the disturbance excited in the second medium , when , in the case of total reflexion , it ceases to transmit a wave in the regular way , is represented by ...
الصفحة 246
... light through a prism , though the wave which is propagated by normal vibrations were incapable itself of affecting the eye , yet it would be capable ... light polarized in and perpendicular to 246 ON THE REFLEXION AND REFRACTION OF LIGHT .
... light through a prism , though the wave which is propagated by normal vibrations were incapable itself of affecting the eye , yet it would be capable ... light polarized in and perpendicular to 246 ON THE REFLEXION AND REFRACTION OF LIGHT .
الصفحة 247
... polarization . But it results from our formulæ , when the light is polarized perpendicular to the plane of incidence , that the expressions given by Fresnel are only very near approximations ; and that the intensity of the reflected ...
... polarization . But it results from our formulæ , when the light is polarized perpendicular to the plane of incidence , that the expressions given by Fresnel are only very near approximations ; and that the intensity of the reflected ...
الصفحة 257
... light polarized in the plane of incidence , according to Fresnel . Then we have 0 = u , 0 = v , 0 = u , 0 = v1 ; and supposing the disturbance the same for every point of the same front of a wave , w and w , will be independent of z ...
... light polarized in the plane of incidence , according to Fresnel . Then we have 0 = u , 0 = v , 0 = u , 0 = v1 ; and supposing the disturbance the same for every point of the same front of a wave , w and w , will be independent of z ...
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angle angle of incidence axes axis becomes belonging centre coefficients consequently constant quantity corresponding density determine direction distance dv dv dv dw dx dx dx dy dz dx dz dx² dy dx dy dy dz dx electric fluid element ellipsoid entire function equal to zero equilibrium evidently exact differential expression exterior finite formula give given Hence induced interior luminiferous ether magnetic medium Moreover motion obtain P₁ partial differential equation particles perpendicular plane plane wave preceding propagation quantity of electricity radius rational and entire rectangular co-ordinates refracted wave represent shell sphere spherical substituted suppose surface of junction term theory tion total potential function tricity V₁ variable velocity vibrations wave's front wire µ² µ³ аф
مقاطع مشهورة
الصفحة 69 - Since this was written, I have obtained formulae serving to express, generally, the law of the distribution of the electric fluid near the apex 0 of a cone, which forms part of a conducting surface of revolution having the same axis.
الصفحة 247 - We are so perfectly ignorant of the mode of action of the elements of the luminiferous ether on each other, that it would seem a safer method to take some general physical principle as the basis of our reasoning, rather than assume certain modes of action...
الصفحة 278 - From the identity of this formula with that for the centre of gravity, it appears that the velocity of the great primary wave of translation of a fluid is that due to gravity acting through a height equal to the depth of the centre of gravity of the transverse section of the channel below the surface of the fluid. 7- The height of a wave may be indefinitely increased by propagation into a channel which becomes narrower in the form of a wedge, the increased height being nearly in the inverse ratio...
الصفحة 248 - of the advantages of this method, of great importance, is that we are " necessarily led by the mere process of the calculation, and with little care "on our part, to all the equations and conditions which are requisite and "sufficient for the complete solution of any problem to which it may be "applied.
الصفحة 11 - Ifp be a particle of positive electricity under the influence of forces arising from any electrified body, the function in question, as is well known, will be obtained by dividing the quantity of electricity in each element of the body, by its distance from the particle p, and taking the total sum of these quotients for the whole body, the quantities of electricity in those elements which arc negatively electrified, being regarded as negative.
الصفحة 316 - ... vibration, it will not be sufficient merely to allow for the loss of weight caused by the fluid medium, but that it will likewise be requisite to conceive the density of the body augmented by a quantity proportional to the density of this fluid.
الصفحة x - In whatever way the elements of any material system may act upon each other, if all the internal forces exerted be multiplied by the elements of their respective directions, the total sum for any assigned portion of the mass will always be the exact differential of some function.
الصفحة 285 - Moreover, should the radius of the sphere of sensible action of the molecular forces bear any finite ratio to X, the length of a wave of light, as some philosophers have supposed, in order to explain the phenomena of dispersion, instead of an abrupt termination of our two media we should have a continuous though rapid change of state of the ethereal medium in the immediate vicinity of their surface of separation. And I have here endeavoured to...
الصفحة 50 - We therefore see, that the total charge of all the phials is precisely the same, as that which one only would receive, if placed in communication with the same conductor, provided its exterior coating were connected with the earth. Hence this mode of charging, although it may save time, will never produce a greater accumulation of fluid, than would take place, if one phial only were employed. 9. Conceive now, a hollow shell of perfectly conducting matter, of any form and thickness whatever, to be...
الصفحة 315 - ... fluid, when agitated by a solid ellipsoidal body, moving parallel to itself, according to any given law, always supposing the body's excursions very small, compared with its dimensions. From what will be shown in the sequel, the general solution of this problem may very easily be obtained. But as the principal object of our paper is to determine the alteration produced in Mr GREEN on the Vibration of Pendulums.