Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, 1854 - 396 стор. |
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Сторінка 16
... fact owing to any of the rays usually perceived . " About the same period Desmortiers observed that the sun's rays produced a decolouration of Prussian blue ; at a somewhat later period Dr. Wollaston showed that cards moistened with ...
... fact owing to any of the rays usually perceived . " About the same period Desmortiers observed that the sun's rays produced a decolouration of Prussian blue ; at a somewhat later period Dr. Wollaston showed that cards moistened with ...
Сторінка 18
... fact , from the following circumstances : - " In a variety of experiments , " says this philosopher , " which I have occasionally made , relating to the method of viewing the sun with large telescopes to the best advantage , I used ...
... fact , from the following circumstances : - " In a variety of experiments , " says this philosopher , " which I have occasionally made , relating to the method of viewing the sun with large telescopes to the best advantage , I used ...
Сторінка 24
... fact long ago known . Even in the twilight , the colour of moist muriate of silver , spread upon paper , slowly changed from white to faint violet ; though , under similar circumstances , no immediate alteration was produced upon the ...
... fact long ago known . Even in the twilight , the colour of moist muriate of silver , spread upon paper , slowly changed from white to faint violet ; though , under similar circumstances , no immediate alteration was produced upon the ...
Сторінка 34
... fact , that Light could be made to delineate on solid bodies , delicately beautiful pictures , geometrically true , of those objects which it illuminated . In the July following , after a bill was passed , securing to M. Daguerre a ...
... fact , that Light could be made to delineate on solid bodies , delicately beautiful pictures , geometrically true , of those objects which it illuminated . In the July following , after a bill was passed , securing to M. Daguerre a ...
Сторінка 39
... fact is , however , that no such result as that stated can be obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those of the utmost purity , a dull neutral tint approaching to ...
... fact is , however , that no such result as that stated can be obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those of the utmost purity , a dull neutral tint approaching to ...
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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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