Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, Brown, Green, and Longmans, 1854 - 396 стор. |
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Сторінка 19
... equal quantities of the mixture in a yellowish red and in a blue glass . In the blue glass , combination took place instantly when the mixture was exposed to daylight , but without explosion . The mixture in the red glass was exposed by ...
... equal quantities of the mixture in a yellowish red and in a blue glass . In the blue glass , combination took place instantly when the mixture was exposed to daylight , but without explosion . The mixture in the red glass was exposed by ...
Сторінка 31
... equal coating . The plate is then placed upon heated iron , which is wrapped round with several folds of paper , from which , by this method , all moisture has been previously expelled . When the varnish has ceased to simmer , the plate ...
... equal coating . The plate is then placed upon heated iron , which is wrapped round with several folds of paper , from which , by this method , all moisture has been previously expelled . When the varnish has ceased to simmer , the plate ...
Сторінка 41
... equal lengths , -a red , a yellow , and a blue spectrum overlapping each other , and exhibiting the colours of the Newtonian spectrum by allowing one to be seen through that one which overlaps it . ( 52. ) M. Bernard of Bordeaux has ...
... equal lengths , -a red , a yellow , and a blue spectrum overlapping each other , and exhibiting the colours of the Newtonian spectrum by allowing one to be seen through that one which overlaps it . ( 52. ) M. Bernard of Bordeaux has ...
Сторінка 53
... equal in breadth to the paper , dipped in good rectified spirits of wine , is to be passed over the white surface ... equals the breadth of the luminous spectrum , and even some- what surpasses it ; and in length , till it forms a long ...
... equal in breadth to the paper , dipped in good rectified spirits of wine , is to be passed over the white surface ... equals the breadth of the luminous spectrum , and even some- what surpasses it ; and in length , till it forms a long ...
Сторінка 72
... equal quantity of water , the films were dissolved off with the formation of nitrous acid fumes . ( 102. ) These results prove that the influence of the CHEMICAL CHANGES . 73 I chemical rays ( actinism ) 72 RESEARCHES ON LIGHT .
... equal quantity of water , the films were dissolved off with the formation of nitrous acid fumes . ( 102. ) These results prove that the influence of the CHEMICAL CHANGES . 73 I chemical rays ( actinism ) 72 RESEARCHES ON LIGHT .
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absorption actinic ammonia appears Becquerel bleaching blue rays bodies brown calorific rays calotype camera obscura carbonic acid chemical action chemical change chemical rays chloride of silver chromate colour combination copper Daguerreotype dark darkened dissolved distilled water dried effect employed evident experiments exposed exposure ferrocyanide fluid formed gallic acid germination gold green rays heat hyposulphite of soda impression influence intensity invisible iodide of silver iodine iron least refrangible Light luminous rays mercury metallic minutes Niepce nitrate of silver nitric acid observed obtained oxide oxygen paper peculiar phenomena photographic picture placed plants plate portion potash potassium precipitate prepared prism prismatic spectrum produced quantity quinine radiations red rays refrangible rays remarkable rendered 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 washed yellow ray