Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, 1854 - 396 стор. |
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Сторінка xv
... quantity . 5th . Where there is no sensation of Light under or- dinary circumstances , beyond the violet rays of the spec- trum , the chemical change is speedily produced . Reasoning upon these facts , and some others of a still more ...
... quantity . 5th . Where there is no sensation of Light under or- dinary circumstances , beyond the violet rays of the spec- trum , the chemical change is speedily produced . Reasoning upon these facts , and some others of a still more ...
Сторінка 6
... quantities it can be differently placed . So that , would we compare the variety of the materials which exist with those which might be brought into being , by all the combinations possible to be made , we must say that the universe ...
... quantities it can be differently placed . So that , would we compare the variety of the materials which exist with those which might be brought into being , by all the combinations possible to be made , we must say that the universe ...
Сторінка 10
... quantity of luna cornua ( horn silver ) , though some black powder remained undissolved . The powder having been washed , was , for the greater part , dissolved by a pure acid of nitre , which , by the operation , acquired volatility ...
... quantity of luna cornua ( horn silver ) , though some black powder remained undissolved . The powder having been washed , was , for the greater part , dissolved by a pure acid of nitre , which , by the operation , acquired volatility ...
Сторінка 19
... quantity of Light , and that the violet ray had the least . In conclu- sion , Dr. Herschel asks , " May not the ... quantities of the mixture in a yellowish red and in a blue glass . In the blue glass , combination took place instantly ...
... quantity of Light , and that the violet ray had the least . In conclu- sion , Dr. Herschel asks , " May not the ... quantities of the mixture in a yellowish red and in a blue glass . In the blue glass , combination took place instantly ...
Сторінка 43
... quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation of colour to the refracting angle . For example ...
... quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation of colour to the refracting angle . For example ...
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Загальні терміни та фрази
absorption actinic action of Light ammonia appears Becquerel bleaching blue rays brown calotype camera obscura carbonic acid chemical action chemical rays chloride of silver chromate collodion COLLODION PROCESS colour combination copper Daguerréotype dark darkened distilled water dried Edition effect employed Engravings experiments exposed exposure ferrocyanide fluid formed gallic acid germination gold green rays guaiacum heat hyposulphite of soda impression influence intensity iodide of silver iodine iron least refrangible luminous rays mercury metallic Niepce nitrate of silver nitric acid observed obtained orange oxide oxygen paper peculiar phenomena photographic picture placed plants portion Post 8vo potash potassium precipitate prepared prism prismatic spectrum produced quantity quinine radiations red rays refrangible rays remarkable salts of silver sensitive Sir John Herschel solar rays solution of nitrate space sun's rays sunshine surface tint tion uranium glass vapour vegetable violet rays visible vols washed yellow ray
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