The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1874 - Physics |
Contents
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Common terms and phrases
acid action æther alloys amount angle of incidence apparatus Atlantic axis Biotite cell centims chemical colour condenser conductor constant copper corundum crystals determined difference direction disk distance earth effect electricity electrode electromotive force equal equator equatorial experiments fact flow galvanometer Geissler tube glass gravity Gulf-stream heat hemisphere hydrogen inches increase light liquid macling magnetic mass means measured mercury metals method mica miles millimetres millims mineral molecules motion needle observed obtained ocean ocean-currents optical oxygen palladium paper particles phenomena Phil plane plates platinum polar position potential pressure prime azimuth produced quantity ratio reflected regions resistance rotation selenium silver solution sound specific gravity spectrum stream suppose surface syren temperature theory thickness tion tube vapour velocity vermiculite vibration vis viva water of crystallization wind wire
Popular passages
Page 48 - A plane superficies is that in which any two points being taken, the straight line between them lies wholly in that superficies.
Page 449 - ... their action ; we must humbly refer their causation to one omnipresent influence, and content ourselves with studying their effects and developing by experiment their mutual relations.
Page 133 - It seems, therefore, that in this way we can give a satisfactory explanation of the experiments previously described. When the radiated heat from the lamp falls on the pith, its temperature will rise, and any moisture on it will begin to evaporate and to drive the pith from the lamp. The evaporation will be greatest on that ball which is nearest to the lamp ; therefore this ball will be driven away until the force on the other becomes equal, after which the balls will come to rest, unless momentum...
Page 389 - For nearly two years I have felt quite sure that the proper explanation of voltaic action in the common voltaic arrangement is very near Volta's, which fell into discredit because Volta or his followers neglected the principle of conservation of force.
Page 129 - I look at the geological record as a history of the world imperfectly kept, and written in a changing dialect ; of this history we possess the last volume alone, relating only to two or three countries. Of this volume, only here and there a short chapter has been preserved ; and of each page, only here and there a few lines.
Page 390 - ... with that metal plate to which it is dissimilar. Again : " When a single metal is placed in contact with an electrolyte, a definite difference of potentials is produced between them ; zinc in water becomes negative, copper in water becomes negative, but less so than zinc. If, however, the two metals are plunged together into water, the copper, zinc, and water forming a galvanic cell, all remain at one potential, and no charge of electricity is observed on any part of the system.
Page 449 - On the other hand, a specific matter without weight must be assumed of the existence of which there is no evidence, but in the phenomena for the explanation of which its existence is supposed. To account for the phenomena the fcther is assumed, and to prove the existence of the pether the phenomena are cited.
Page 298 - The general outline of the rest of Mr. Schwendler's communication will be best given in extracts from his paper, which will be printed in full in Part II. of the Journal. Mr. Schwendler says : " The currents observed at all hours of the day and all seasons of the year, in every line throughout India, may be obviously due to many different causes acting separately or conjointly. These currents I have designated ' natural currents,' to indicate the fact of their being in the lines without any direct,...
Page 63 - Some years since, while investigating the action of light upon silver iodide, I succeeded in proving that the black substance which is produced when silver iodide is exposed to light in presence of silver nitrate contains iodine, and is therefore either a subiodide or an oxy-iodide. The quantity obtained was too small to enable me to ascertain which. When this black substance was treated with nitric acid, normal yellow silver iodide was left behind, and silver was found on solution. I have recently...
Page 45 - SOLID GEOMETRY AND CONIC SECTIONS. With Appendices on Transversals and Harmonic Division. For the use of Schools. By JM WILSON...