The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1923 - Physics |
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Page vii
... Light - Quanta 977 Mr. F. I. G. Rawlins : Some further Observations on the Relation between the Focal Length of Microscope Objectives and the Number of Fringes seen in Convergent Polarized Light ........ 992 Mr. E. W. B. Gill on the ...
... Light - Quanta 977 Mr. F. I. G. Rawlins : Some further Observations on the Relation between the Focal Length of Microscope Objectives and the Number of Fringes seen in Convergent Polarized Light ........ 992 Mr. E. W. B. Gill on the ...
Page viii
... Light Sources . III . Illustrative of Mr. Satyendra Ray's Paper on Images obtained by means of a Semi - infinite Obstacle . IV . Illustrative of Mr. J. F. T. Young's Paper on the Crystal Structure of various Heusler Alloys by the Use of ...
... Light Sources . III . Illustrative of Mr. Satyendra Ray's Paper on Images obtained by means of a Semi - infinite Obstacle . IV . Illustrative of Mr. J. F. T. Young's Paper on the Crystal Structure of various Heusler Alloys by the Use of ...
Page 25
... light was passed through the latter , and the absorption spectra noted when the sodium vapour was fluorescing , and when it was not . There was no change in the absorption spectra , and no absorption of the subordinate series lines ...
... light was passed through the latter , and the absorption spectra noted when the sodium vapour was fluorescing , and when it was not . There was no change in the absorption spectra , and no absorption of the subordinate series lines ...
Page 27
... light passing through the intervening layer of cooler vapour before it emerged at the window C. Even with this arrangement , however , the D lines were still very bright compared with the other lines . The radiation issuing at C had ...
... light passing through the intervening layer of cooler vapour before it emerged at the window C. Even with this arrangement , however , the D lines were still very bright compared with the other lines . The radiation issuing at C had ...
Page 28
... light transmitted by these atoms suffers absorption of the subordinate lines , while the D lines are not affected . In the wider portion of the apparatus the electrons are less dense . There is less chance of the atoms absorbing ...
... light transmitted by these atoms suffers absorption of the subordinate lines , while the D lines are not affected . In the wider portion of the apparatus the electrons are less dense . There is less chance of the atoms absorbing ...
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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.