(1) L'Électricité considérée comme Forme de l'Énergie (2) Lehrbuch der Physik (3) Elements of Physics for Use in High Schools (4) Light

    Abstract

    (1) AS suggested by the title, the author in this pamphlet proposes to alter the present method of measuring electricity. Usually the terms “charge of electricity” and “quantity of electricity” are regarded as synonymous. Colonel Aries wishes to draw a distinction between them. The former he regards in the usual way, but defines the latter as proportional to the electrostatic energy, i.e. half the product of the charge and the potential. The consequence of this definition is to arrive at the result that the quantity of electricity associated with an insulated conductor is not constant, but varies with change of potential, although the charge is unaltered. This the author explains by assuming that the electricity (meaning the quantity—in reality the energy) streams to or fro, as the case may be, between the conductor and the surrounding dielectric.

    (1) L'Alectricite considee comme Forme de l'Anergie.

    Electrostatique. Premire Partie. By Lieut.-Colonel E. Aries. Pp. 176. (Paris: A. Hermann et Fils, 1909.) Price 5 francs.

    (2) Lehrbuch der Physik.

    By E. Grimsehl. Pp. xii + 1052. (Leipzig: B. G. Teubner, 1909.) Price 15 marks.

    (3) Elements of Physics for Use in High Schools.

    By H. Crew, revised by F. T. Jones. Pp. xiv + 435. (New York: The Macmillan Co.; London: Macmillan and Co., Ltd., 1909.) Price 6s.

    (4) Light.

    By Prof. R. C. Maclaurin. Pp. ix + 251. (New York: The Columbia University Press, 1909.) Price 1.50 dollars, net.

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    (1) L'Électricité considérée comme Forme de l'Énergie (2) Lehrbuch der Physik (3) Elements of Physics for Use in High Schools (4) Light. Nature 82, 484–485 (1910). https://doi.org/10.1038/082484a0

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