The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1922 - Physics |
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absorption amplitude angle anode apparatus approximately arc flash argon atoms axis basilar membrane boron bulb calculated carbon cathode centre charge circuit coefficient constant corresponding crystal cube curve deflexion density determined dielectric constant direction discharge displacement distance effect electric electric field electrons element emission energy equal equation experimental experiments field fluorescence force formula frequency function galvanometer gases given helium hydrogen increase integral intensity ionization isotopes layer liquid magnesium magnetic mean measured mercury metal method molecular molecules nitrogen observed obtained oscillation P₁ paper phase Phil phosphorus plane plate positive potential pressure quantity radiation radius rays reflexion rhodamine shown in fig solution spark lines specific heat spectrum surface surface tension temperature theory thermometer tube vapour velocity vibration volts water arc wave-length wire zero
Popular passages
Page 288 - The observations render doubtful the correctness of the received opinion that the temperature of the spark discharge is much higher than that of the arc. Heat, however, is not the only form of energy which may give rise to vibrations, and it is probable that the energy of the electric discharge, as well as that due to chemical change, may directly impart to the matter affected vibrations which are more intense than the temperature alone would produce.
Page 376 - The authors wish to record their thanks to the Department of Scientific and Industrial Research for a maintenance grant to one of them (AJH) during a part of the period covered by this work.
Page 565 - The experimental work described in this paper was carried out in the George Holt Physics Laboratory of the University of Liverpool during the period 1945-7. The nuclear spectrum of ThC->C...
Page 485 - Newitt for his close interest in this investigation, and to the Department of Scientific and Industrial Research for a grant, with the aid of which the work here described was carried out.
Page 126 - In the present paper, an exact solution of the problem is given in the case of a beam of rectangular section, of which the breadth is great or small compared with the depth, so that the problem is virtually one of plane strain or of plane stress.
Page 162 - Now the voltage plotted in the diagrams is the voltage between the central point of the hotwire and the surrounding cylinder as read on a voltmeter which in effect is inserted between these points. This differs from the true voltage by an amount equal to the contact difference of potential between the surfaces plus an effect arising from the drop of potential due to the heating current down the wire. With the arrangements used the last effect is believed to have been sensibly the same in all the...
Page 371 - P = where p is the vapor pressure of the evaporating substance, M is the molecular weight, R the gas constant and T the absolute temperature. The shape factor for a spherical shell is1...
Page 249 - ... are all equal, produce a state of things in which the percentage of the whole which have, at each moment, any distinctive property must (after many collisions) tend towards a definite numerical value ; from which it will never afterwards markedly depart.
Page 20 - Cartesian coordinates' for a non-Euclidean space requires definition, and the equation for r given above assumes an underlying Pythagorean theory that is not tenable for non-Euclidean spaces in general. Since the only existing experimental verifications of the relativity gravitational theory are based on the expression for (ds)2 in a permanent symmetrical gravitational field, it is desirable that the assumptions in the mathematical treatment should be clearly stated."]; "On the significance of Einstein's...
Page 161 - The photo-electric effect of the radiation from carbon and boron bombarded by electrons has been measured as a function of the energy of the electrons. Two slight but definite breaks in the curves for both carbon and boron were obtained. These are considered to correspond to the K-and L-absorption wave-lengths.