The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1873 |
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Common terms and phrases
action æther amblygonite amplitude angle apparatus appear axis battery body bubbles carbon carbonic acid centims centre chromosphere circuit coil constant corpuscules corresponding crystals curvature curve deflection denote Diagram distance distillate dlog electric electromotive force equal equation experiments expression feet from bottom flame fluorescence formula fractional distillation galvanometer gaseous gases give given glass heat inch induced intensity iron length light liquid London Clay magnet maximum measured mercury metal method millims motion nitric acid observations obtained paper percentage of acid Phil plane plane of reference plate Pleistocene Pliocene position pressure produced proper motions quantity radius rays resistance resonators rifling solid sound spectroscope spectrum star substance sulphurous acid supersaturated solution suppose surface temperature theory tion tube vapour velocity vibrations vis viva wave-lengths wire
Popular passages
Page 302 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of any thing else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man, who has in philosophical matters a competent faculty of thinking, can ever fall into it. Gravity must be caused by an agent acting constantly according to certain laws; but whether this agent...
Page 301 - It is inconceivable, that inanimate brute matter should, without the mediation of something else, which is not material, operate upon, and affect other matter without mutual contact; as it must do, if gravitation, in the sense of Epicurus, be essential and inherent in it.
Page 72 - This consists of two wires, one of platinum and the other of an alloy of 90 per cent. platinum and 10 per cent rhodium.
Page 430 - Crack'd; and I saw the flaring atom-streams And torrents of her myriad universe, Ruining along the illimitable inane, Fly on to clash together again, and make Another and another frame of things For ever...
Page 432 - In the heavens we discover by their light, and by their light alone, stars so distant from each other that no material thing can ever have passed from one to another; and yet this light, which is to us the sole evidence of the existence of these distant worlds, tells us also that each of them is built up of molecules of the same kind as those which we find on earth.
Page 129 - Mr. Proctor has brought to light strong evidence in favour of the drift of stars in groups having a community of motion, by his graphical investigation of the proper motions of all the stars in the catalogues of Mr. Main and Mr.
Page 369 - Why should not Nature take a sudden leap from structure to structure? On the theory of natural selection, we can clearly understand why she should not; for natural selection acts only by taking advantage of slight successive variations, she can never take a great and sudden leap, but must advance by short and sure, though slow steps.
Page 433 - Each molecule, therefore, throughout the universe, bears impressed on it the stamp of a metric system as distinctly as does the metre of the Archives at Paris, or the double royal cubit of the Temple of Kamac.
Page 132 - It was found in all cases that the difference between the spectrum of the chloride and the spectrum of the metal was that under the same spark-conditions all the short lines were obliterated. Changing the spark-conditions, the final result was that only the very longest lines in the spectrum of the metallic vapour remained. It was observed that in the case of elements with low atomic weights, combined with one equivalent of chlorine, the numbers of lines which remain in the chloride is large, 60...
Page 131 - ... that of the gaseous medium through which the spark passes. Photographs of the spark, taken in air between zinc and cadmium and zinc and tin, accompany the paper, showing that when spectra of the vapours given off by electrodes are studied in this manner, the vapours close to the electrode give lines which disappear from the spectrum of the vapour at a greater distance from the electrode, so that there appear to be long and short lines in the spectrum. The following elements have been mapped on...