Nature, Volume 95Sir Norman Lockyer Macmillan Journals Limited, 1915 - Electronic journals |
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Page 68
... tube and separated a convenient distance ( Fig . 1 ) . For modern trench warfare the convenient separation is about 18 to 24 in . , and the mirrors are mounted in tubes , in boxes of square or oblong section , or attached to a long rod ...
... tube and separated a convenient distance ( Fig . 1 ) . For modern trench warfare the convenient separation is about 18 to 24 in . , and the mirrors are mounted in tubes , in boxes of square or oblong section , or attached to a long rod ...
Page 69
... tube has a spherical glass cover . In the inner tube is the optical system , which can be rotated to face i Lower Part . k L ... m p a ... b A- -c C d in any required direction ; the eye piece , how- ever , fixed . The e system , -g ...
... tube has a spherical glass cover . In the inner tube is the optical system , which can be rotated to face i Lower Part . k L ... m p a ... b A- -c C d in any required direction ; the eye piece , how- ever , fixed . The e system , -g ...
Page 80
... tube is built up of layers of the same or different materials , but brought together with one layer decidedly cooler than another . The presence of a thin white band in the substance of the glass may also indicate that the tube has been ...
... tube is built up of layers of the same or different materials , but brought together with one layer decidedly cooler than another . The presence of a thin white band in the substance of the glass may also indicate that the tube has been ...
Page 82
... tube , which contains good deal of amorphous material , behaves like a viscous fluid , that is , it flows more or less freely under stress , whereas , at the same temperature , an annealed tube being crystalline will flow in a much less ...
... tube , which contains good deal of amorphous material , behaves like a viscous fluid , that is , it flows more or less freely under stress , whereas , at the same temperature , an annealed tube being crystalline will flow in a much less ...
Page 156
... tube provided with a lithium glass window . The rays can only pass out of the lead chamber in which the tube is enclosed through a series of fine holes in lead screens in line with each other , and in consequence they strike the ...
... tube provided with a lithium glass window . The rays can only pass out of the lead chamber in which the tube is enclosed through a series of fine holes in lead screens in line with each other , and in consequence they strike the ...
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acid animals antiseptic appears April Astronomical atoms British carbon cent chemical chemistry chemists College colour comet Committee contains deals described E. E. Barnard edition effect electric electron Engineering experiments fact Geological German given gives glass gyrostat heat heliometer helium hydrogen illustrated important India industry insects Institute interesting investigation J. J. Thomson laboratory large number larvæ lectures lines London manufacture March measure ment method Museum National Physical Laboratory Natural History observations Observatory obtained okapi optical organisation ossicone paper parallax photographs physical plants practical present pressure Price problem production Prof proper motions published radiation radio-active recent regard ROVAL Royal Society School scientific solar South species specimens spectra spectrum stars supply surface temperature theory tion tube University vapour various volume W. H. Bragg W. H. Perkin
Popular passages
Page 220 - that the objects of the corporation shall be to encourage, in the broadest and most liberal manner, investigation, research, and discovery, and the application of knowledge to the improvement of mankind,
Page 164 - the two systems, as thus stated, do not appear to be great, but they are important. " The little more, and how much it is ! and the little less and how far away
Page 312 - With my pencil I made a rough sketch of the cone and pine I wanted and showed him it, when he instantly pointed to the hills about fifteen or twenty miles to the south. As I wanted to go in that direction he, seemingly with much good will, went with me. At midday I reached my long-wished
Page 85 - science of behavior ') and never go back upon the definition ; never to use the terms consciousness, mental states, mind, content, will, imagery, and the like. ... It can be done in terms of stimulus and response, in terms of habit formation, habit integration, and the like.
Page 138 - of technical and scientific investigation and experimentation through the agency of the Smithsonian Institution and such other scientific and educational institutions and societies as may be selected by the directors. The Smithsonian Institution is interested in the management of this corporation through the membership of the secretary in its board of directors.
Page 136 - to be known as the Langley Aerodynamical Laboratory. The functions of the laboratory were defined to be the study of the problems of aerodromics, particularly those of aerodynamics, with such research and experimentation as may be necessary to increase the safety and effectiveness of aerial locomotion for the purposes of commerce, national
Page 138 - behalf of the institution indicate, he says, " that there exist to-day over large parts of eastern Siberia and in Mongolia, Tibet, and other regions in that part of the world numerous remains which now form constituent parts of more modern tribes or nations, of a more ancient population (related in origin, perhaps, with the latest
Page 357 - Stagnant air at the same temperature as fresh air, even when it contains twenty or more parts of carbon dioxide, and all the organic and other substances in the breathed air of occupied rooms, has, so far, shown no effect on any of the physiological
Page 97 - makes up for its lack relatively to Africa and India of large man-eating Carnivora by the extraordinary ferocity or blood-thirstiness of certain small creatures of which the kinsfolk elsewhere are harmless. It is only here that fish no bigger than trout kill swimmers, and bats the size of the ordinary
Page 85 - Psychology has failed signally during the fifty odd years of its existence as an experimental discipline to make its place in the world as an undisputed natural science.