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Showing papers in "Philosophical Magazine Series 1 in 1928"


Journal ArticleDOI
TL;DR: In this paper, the stream-line motion of fluid in a curved pipe is described, and the authors present a model of the fluid flow in a curve pipe, which is based on the one described in this paper.
Abstract: (1928). LXXII. The stream-line motion of fluid in a curved pipe (Second paper) The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, No. 30, pp. 673-695.

889 citations


Journal ArticleDOI
TL;DR: In this article, a method for extending microscopic resolution into the ultra-microscopic region was proposed, based on a method proposed by the London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science.
Abstract: (1928). XXXVIII. A suggested method for extending microscopic resolution into the ultra-microscopic region. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, No. 35, pp. 356-362.

801 citations


Journal ArticleDOI
TL;DR: In this article, the heartbeat is considered as a relaxation oscillation and an electrical model of the heart, and the authors propose a relaxation model for the human heart, which is based on the one described in this paper.
Abstract: (1928). LXXII. The heartbeat considered as a relaxation oscillation, and an electrical model of the heart. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, Supplement, pp. 763-775.

560 citations


Journal ArticleDOI
TL;DR: In this paper, the stability of the solutions of Mathieu's equation has been investigated and the authors have shown that the solution of the Mathieu equation is stable with respect to the number of solutions.
Abstract: (1928). II. On the stability of the solutions of Mathieu's equation. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, No. 27, pp. 18-38.

135 citations


Journal ArticleDOI
TL;DR: In this paper, the first and second natural frequencies of a part or a circular ring, hinged or clamped at its ends, were derived for the extension of the fibres under certain conditions.
Abstract: Formulae are derived for the first and second natural frequencies of a part or a circular ring, hinged or clamped at its ends. It is shown that the type of vibration, in which extension of the fibres occurs, under certain conditions may have a lower natural frequency than any non-extensional extensional type of vibration. The results are given in the form of curves and tables.

94 citations


Journal ArticleDOI
TL;DR: In this article, the authors present a survey of magnetic studies on salts, with particular reference to those with complex ions, and present a method for extracting the magnetic properties of complex ions.
Abstract: (1928). XLIX. Magnetic studies on salts, with particular reference to those with complex ions. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, No. 36, pp. 481-509.

93 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown experimentally and theoretically that the surface-tension of the surface of the drop or bubble decreases the terminal velocity, for any radii appreciably less than a certain critical value, the drop behaves almost like a rigid sphere.
Abstract: Summary In a previous paper by one of the authors it was shown that spherical drops or bubbles surrounded by a more viscous fluid might have a terminal velocity as great as one and a half times that of a solid sphere of equal size and mass. The present paper shows experimentally and theoretically that the surface-tension of the surface of the drop or bubble decreases the terminal velocity. For any radii appreciably less than a certain critical value the drop or bubble behaves almost like a rigid sphere. After a fairly rapid transition, for all radii appreciably larger than the critical the effect of surface-tension is small. Experiments on the terminal velocity for air in water-glass, air in syrup, mercury in syrup, and water in castor-oil, all give critical radii of the order predicted; but the different media show appreciably mutual disagreement, the cause of which is not vet certain.

93 citations


Journal ArticleDOI
TL;DR: In this article, the authors described further observations on the phenomenon on the luminescence produced at the contact of a carborundum detector in connexion with a view on luminecence as a consequence of the process in the contact which is very similar to cold electronic discharge.
Abstract: In this paper are described further observations on the phenomenon on the luminescence produced at the contact of a carborundum detector in connexion with a view on luminescence as a consequence of the process in the contact which is very similar to cold electronic discharge.

84 citations


Journal ArticleDOI
TL;DR: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, Supplement, pp. 835-848 as discussed by the authors, with a discussion of relativistic cosmology.
Abstract: (1928). LXXXVI. On relativistic cosmology. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, Supplement, pp. 835-848.

81 citations


Journal ArticleDOI
TL;DR: In this paper, the structure of vortex sheets has been investigated and the authors propose a method to construct a vortex sheet from a single image, which they call a vortex-sheet, and the London, Edinburgh and Dublin Philosophical Magazine and Journal of Science.
Abstract: (1928). XLII. The structure of vortex sheets. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, No. 28, pp. 417-441.

62 citations


Journal ArticleDOI
TL;DR: The velocity of sound in liquids at high frequencies by the sonic interferometer was studied in this paper, where the velocity was measured at high frequency by the SINR-SINR.
Abstract: (1928). CXXII. The velocity of sound in liquids at high frequencies by the sonic interferometer. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, No. 33, pp. 1177-1190.


Journal ArticleDOI
TL;DR: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, Supplement, pp. 857-878 as discussed by the authors, was published in 1998.
Abstract: (1928). LXXXVI. Electrical properties of neon. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, Supplement, pp. 857-878.



Journal ArticleDOI
TL;DR: Benham as mentioned in this paper proposed a solution of the alternating case, taking into account space-charge but neglecting emission velocities, in the special case of a small oscillatory potential superimposed on a large steady potential.
Abstract: Equations are given applying to a parallel plane thermionic system subject to potentials varying in time. These equations are similar to Child's equations for steady potentials, but contain extra terms. A solution of the alternating case is obtained, taking into account space-charge but neglecting emission velocities, in the special case of a small oscillatory potential superimposed on a large steady potential. The time of transit of the electrons appears in the solution. The theory is used to explain certain experimental results on the frequency variation of rectified current (W. E. Benham, Phil. Mag., Feb. 28.).

Journal ArticleDOI
TL;DR: A theory of light-scattering in liquids was proposed in this paper, where the authors considered the case of light scattering in liquids and showed that it is possible to obtain light scattering from liquids.
Abstract: (1928). LI. A theory of light-scattering in liquids. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 5, No. 29, pp. 498-512.



Journal ArticleDOI
TL;DR: In this paper, photosensitized band fluorescence of OH, HgH, NH, H 2 O, and NH 3 molecules are described. But the authors do not discuss the relationship between the bands and the fluorescence.
Abstract: (1928). CXVI. Photosensitized band fluorescence of OH, HgH, NH, H 2 O, and NH 3 molecules. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, No. 40, pp. 1191-1210.



Journal ArticleDOI
TL;DR: The Raman spectra of scattered radiation has been studied extensively in the literature as discussed by the authors, with a focus on the Raman spectrum of scattering radiation and its relationship with scattering radiation.
Abstract: (1928) LXIX The Raman spectra, of scattered radiation The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol 6, No 37, pp 729-743





Journal ArticleDOI
TL;DR: In this paper, an analysis of X-ray analysis of silver aluminium alloys is presented, where the authors propose a method for extracting the structure of the alloys from the x-ray data.
Abstract: (1928). XXVI. X-ray analysis of silver aluminium alloys. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, No. 35, pp. 280-288.