Proceedings of the Royal Society. Section A, Mathematical and Physical ScienceHarrison and Son, 1908 - Electronic journals |
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active apparatus appear atomic weight axis bulb calculated cane-sugar carbonic cathode charge chloride concentration condenser conductivity corresponding cos² curve D.Sc determined dielectric dilution effect electric electrodes electrolytic electrometer emanation energy equation experiments fraction function galvanometer gases given glass gramme of radium heat helium hydrogen hydrogen chloride hydrol hydrolytic increase intensity ionisation ions J. J. Thomson krypton light lines liquid air Lord Rayleigh magnetic measured mercury metal method methylic acetate migration constant molecular molecules negative number of a-particles observed obtained optical oxygen paper Phil plane Plates porcelain potential pressure Price produced proportional quantity R. C. PUNNETT radio-active radium ratio refractive refractive indices rotatory power ROYAL SOCIETY salt sodium solution spectrum substances sugar sulphuric acid surface tantalum temperature theory Thomson tube velocity vertical viscosity voltage volts volume wave-length waves xenon
Popular passages
Page xlv - are, of course, only valid provided that the law when sufficiently tested proves to be universally correct. In the meantime there is little prospect of the law being proved incorrect. At all events we must admire the sagacity of Thomson, who, in the letters of a long-known little mathematical formula which only speaks of the heat, volume, and pressure
Page lx - is shortly this :—" The hypothesis of a perfectly rigid crust containing liquid violates physics by assuming preternaturally rigid matter, and violates dynamical astronomy in the solar semi-annual and lunar fortnightly nutations; but tidal theory has nothing to say against it. On the other hand, the tides decide against any crust flexible enough to perform the nutations correctly
Page 505 - suggests the idea that there may be a problem in the theory of elastic solids corresponding to every problem connected with the distribution of electricity on conductors, or with the forces of attraction and repulsion exercised by electrified bodies. The clue to a similar representation of magnetic and galvanic forces is afforded by Mr. Faraday's recent discovery
Page xvii - The electromagnetic theory of light, as proposed by him, is the same in substance as that which I have begun to develope in this paper, except that in 1846 there were no data to calculate the velocity of propagation."* Maxwell
Page 505 - I should exceed my present limits were I to enter into a special examination of the states of a solid body representing various problems in electricity, magnetism, and galvanism, which must therefore be reserved for a future paper. Glasgow College,
Page lxx - done very much to destroy the old unnatural separation between experimental and mathematical physics, and to reduce the latter to a precise and pure expression of the laws of phenomena. He is an eminent mathematician, but the gift to translate real facts into mathematical equations, and vice
Page xlvi - of bodies, was able to discern consequences which threatened the universe, though certainly after an infinite period of time, with eternal death.". Later, in 1861, in writing of the constant surprises that arose in his
Page xviii - magneto-optic experiment makes this not a hypothesis, but a demonstrated conclusion. Thus a rifle bullet keeps its point foremost; Foucault's gyroscope finds the earth's axis of palpable rotation ; and the magnetic needle shows that more subtle rotatory movement in matter of the earth, which we call terrestrial
Page xxiv - any oblong arrangement of the heavy glass, is now evident. It is merely a result of the tendency of the particles to move outwards, or into the positions of weakest magnetic action. The joint exertion of the action of all the particles brings
Page xviii - by one and the same dynamical action. " It is often asked, are we to fall back on facts and phenomena, and give up all idea of penetrating that mystery which hangs round the ultimate nature of matter ? This is a question that must be answered by the metaphysician, and it does not belong to the domain of Natural Philosophy. But