Nature, 第 28 卷Sir Norman Lockyer Macmillan Journals Limited, 1883 |
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第 1 到 5 筆結果,共 84 筆
第 13 頁
... given to the handle suffice to charge those armatures to their fullest extent , so that they begin to discharge pale sparks over the disks . But now begins another action . From right to left in front of the front disk lies an ...
... given to the handle suffice to charge those armatures to their fullest extent , so that they begin to discharge pale sparks over the disks . But now begins another action . From right to left in front of the front disk lies an ...
第 14 頁
... given of the mode of life followed by the savages in regions lying in the north - west of the Atlantic , which are now known to us as Newfoundland , Canada , and the United States , but of which European had no correct information until ...
... given of the mode of life followed by the savages in regions lying in the north - west of the Atlantic , which are now known to us as Newfoundland , Canada , and the United States , but of which European had no correct information until ...
第 22 頁
... given by the discharge in the wide part of the tube . These lines extend above and below the narrow continuous spectrum if the electrode is well placed so that half an inch or so of the spark in the wide part of the tube may intervene ...
... given by the discharge in the wide part of the tube . These lines extend above and below the narrow continuous spectrum if the electrode is well placed so that half an inch or so of the spark in the wide part of the tube may intervene ...
第 27 頁
... given to them by the national aid , or the sentiment which compelled Congress to give help to higher education , has carried forward and deepened the interest in industrial , scientific , and technical instruction . Students are now ...
... given to them by the national aid , or the sentiment which compelled Congress to give help to higher education , has carried forward and deepened the interest in industrial , scientific , and technical instruction . Students are now ...
第 29 頁
... given directly from the rough second . plottings . Number of Seconds and Tenths of Seconds in Excess of Two Minutes that are required for Running One Mile by the Horses whose Order in the Rate of Running in each Year is given at the Top ...
... given directly from the rough second . plottings . Number of Seconds and Tenths of Seconds in Excess of Two Minutes that are required for Running One Mile by the Horses whose Order in the Rate of Running in each Year is given at the Top ...
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acid Algæ animals apparatus appears April atmosphere aurora aurora borealis British Association carbon carbonic acid cause centimetres centre circuit clouds coast colocynth colour comet contains corresponding deflexion described direction distance electric electric current electromotive force exhibited expedition experiments expose expose expose fact fisheries flora Francis Galton fumarole fuze galvanometer give given gneiss Greenland heat horizon hydrogen hydrogen lines instrument interesting iron Island light lower magnetic matter means measure ment metal method metres miles molecules moon Museum nature object observations Observatory obtained operculum paper phenomena phenomenon photographs plane plants plate polarisation polarity position present probably Prof Ramses II rays regard remarkable researches Royal scientific seen Society Sodankylä solar species specimens spectrum stars sunspots surface tellurium temperature theory tion vapour vertical wire zodiacal light
熱門章節
第 25 頁 - Education as set forth in the act which established it is that of — •collecting such statistics and facts as shall show the condition and progress of •education in the several States and Territories, and of diffusing such information respecting the organization and management of schools and school systems, and methods of teaching, as shall aid the people of the United States in the establishment and maintenance of efficient school systems, and otherwise promoting — the cause of education...
第 274 頁 - To form some conception of the degree of coarse-grainedness indicated by this conclusion, imagine a rain drop, or a globe of glass as large as a pea, to be magnified up to the size of the earth, each constituent molecule being magnified in the same proportion. The magnified structure would be coarser grained than a heap of small shot, but probably less coarse grained than a heap of cricketballs.
第 288 頁 - Measures of cleanliness, taken beforehand, are of far more importance for the protection of a district against Cholera than removal or disinfection of filth after the disease has actually made its appearance.
第 82 頁 - When the condors are wheeling in a flock round and round any spot, their flight is beautiful. Except when rising from the ground, I do not recollect ever having seen one of these birds flap its wings.
第 101 頁 - But if we give up the principle in one case, if we do not admit that the variations of the primeval dog were intentionally guided in order that the greyhound, for instance, that perfect image of symmetry and...
第 115 頁 - University for at least three terms during tenure. The tenure is for three years, but may be renewed for the whole or part of a second period of three years. Any balance of the income from the Fund is to be devoted to the furtherance of original research in Biology, especially Animal Morphology, by grants for such purpose to the Balfour Student or to any other person engaged in such research.
第 45 頁 - The escape of electricity cannot be detected by the sense of smell, as can gas, but it can be detected by apparatus far more certain and delicate. Leakage not only means waste, but in the presence of moisture it means destruction of the conductor and its insulating covering, by electric action.
第 98 頁 - CONTRIBUTIONS TO THE PHYSICAL HISTORY OF THE BRITISH ISLES ; with a Dissertation on the Origin of Western Europe and of the Atlantic Ocean. With 27 Coloured Maps.
第 133 頁 - Literature and Science.'' by M. Arnold, MA 1883 "The Origin of the existing forms of Animal Life: Construction or Evolution?
第 67 頁 - The subject of the utilization of electricity for purposes of defence did, however, not receive systematic investigation in England or other countries until some years afterwards, when the great importance of submarine mines as engines of war was demonstrated by the number of ships destroyed and injured during the war in America. Twenty-five vessels belonging to the Federal navy were destroyed, and nine others injured, by the explosion of...