The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1923 - Physics |
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Page iii
... Surface Crust . II . Dr. A. M. Mosharrafa on the Quantum Theory of the Complex Zeeman Effect ..... 170 177 Prof. L. Vegard on the Auroral Spectrum and the Upper Strata of the Atmosphere . Preliminary Communication . 193 Dr. F. W. Aston ...
... Surface Crust . II . Dr. A. M. Mosharrafa on the Quantum Theory of the Complex Zeeman Effect ..... 170 177 Prof. L. Vegard on the Auroral Spectrum and the Upper Strata of the Atmosphere . Preliminary Communication . 193 Dr. F. W. Aston ...
Page 14
... surface is plane if any straight line joining two points of it lies wholly upon it . But , in the case we are thinking of , projections will again nearly always interfere with the application of this test . Hence the notion of a plane ...
... surface is plane if any straight line joining two points of it lies wholly upon it . But , in the case we are thinking of , projections will again nearly always interfere with the application of this test . Hence the notion of a plane ...
Page 26
... surface to disappear , and in this way the two pools of alloy had clean surfaces . With this arrangement an are could be struck between the two alloy electrodes with an applied potential difference as low as 30 volts . The arc was ...
... surface to disappear , and in this way the two pools of alloy had clean surfaces . With this arrangement an are could be struck between the two alloy electrodes with an applied potential difference as low as 30 volts . The arc was ...
Page 50
... surface on which that image is formed . This concerns the type of sensitive surface which is being used for recording the optical image , whether it be , e . g . a photographic plate or the retina of the eye . In the case of vision ...
... surface on which that image is formed . This concerns the type of sensitive surface which is being used for recording the optical image , whether it be , e . g . a photographic plate or the retina of the eye . In the case of vision ...
Page 53
... surface . The bars are absolutely black , and the clear parts between quite bright . In the case of a periodic structure seen under the microscope this is not the case , because no matter how perfectly the instrument is corrected there ...
... surface . The bars are absolutely black , and the clear parts between quite bright . In the case of a periodic structure seen under the microscope this is not the case , because no matter how perfectly the instrument is corrected there ...
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absorption actinium alloys angle apparatus approximately argon armature assume atomic number atomic weight auroral axis Balmer series calculated carbon cent centre charge circuit coefficient collision colour constant corresponding cubic curves deflexion density diameter distance edge effect electric electrons elements emission energy equal equation experimental experiments filament formula frequency galvanometer gases given helium Heusler alloys hydrogen illumination increase intensity investigation ionization ionizing potential ions J. J. Thomson light limit lines magnetic field maximum mean measured mercury method molecules motion negative nitrogen observed obtained orbit oscillation paper particles Phil Phys plane plate positive potential pressure produced protactinium quantum radiation ratio rays scattering shown sodium solution spectrum straight edge surface Table temperature theory tube uranium values vapour velocity voltage volts wave-length X-ray zero
Popular passages
Page 1130 - MILLION. Containing the least factor of every number not divisible by 2, 3 or 5 between 3,000,000 and 4,000,000.
Page 440 - Professor Japp in his Presidential Address to the Chemical Section of the British Association...
Page 1020 - ... systematic fashion how they achieved their aims. If the discovery of laws could be reduced to a set of formal rules, anyone who learnt the rules could discover laws. But there is no broad road to progress. Herein lies the most serious objection to much that has been written on the methods of science. There is no method, and it is because there is no method which can be expounded to all the world that science is a delight to those who possess the instincts which make methods unnecessary.
Page 837 - The object of the present paper is to show how it is possible to account theoretically for the main features of the phenomena of X-ray absorption and continuous X-ray emission discussed above.
Page 14 - Again it is obvious that even if it were possible to perceive by the senses that the sum of the angles of a triangle is equal to two right angles, we should still require a proof of this ; we should not (as some d fact remains that the object perceived is only one particular instance of the type.
Page 870 - The experiments described in this paper were carried out in order to provide more systematic evidence on the liquid-like behaviour of the growing film.
Page 492 - The evidence appears quite conclusive that every sample of silver iodide studied contained the cubic form; in a few cases none but the cubic structure was evident; in some, one or two faint lines were present which belonged only to the hexagonal form; while in most of the samples the hexagonal form predominated. No systematic study was made of the conditions governing the production of one crystal form or the other; the first sample showing the cubic form was prepared by precipitation; the other...
Page 46 - H. NAGAOKA. Diffraction Phenomena in the Focal Plane of a Telescope with Circular Aperture, due to a Finite Source of Light.