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 xv
... blue and violet - produce the greatest change , and in an exceedingly short space of time . 3rd . The rays which pass through certain yellow glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue ...
... blue and violet - produce the greatest change , and in an exceedingly short space of time . 3rd . The rays which pass through certain yellow glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue ...
Сторінка xvii
... blue and violet rays of the other . The result is , that chemical action is entirely stopped . This may be said to ... blue rays , regarded as the rays to which the maximum chemical effect belongs , may be entirely obliterated without ...
... blue and violet rays of the other . The result is , that chemical action is entirely stopped . This may be said to ... blue rays , regarded as the rays to which the maximum chemical effect belongs , may be entirely obliterated without ...
Сторінка 16
... blue ; below which ray the power of darkening diminished quickly . He also stated that the red ray had the power of restoring darkened chloride of silver to its original colour ; and hence concluded that there are two sets of invisible ...
... blue ; below which ray the power of darkening diminished quickly . He also stated that the red ray had the power of restoring darkened chloride of silver to its original colour ; and hence concluded that there are two sets of invisible ...
Сторінка 19
... 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 twenty minutes without apparent change . When , however ...
... 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 twenty minutes without apparent change . When , however ...
Сторінка 20
... blue rays possessed that power in the highest degree , and there was reason to suspect that this power extended beyond the visible violet ray . ( 29. ) About this period Dr. Blackburne put forth a theory that Light was a compound of ...
... blue rays possessed that power in the highest degree , and there was reason to suspect that this power extended beyond the visible violet ray . ( 29. ) About this period Dr. Blackburne put forth a theory that Light was a compound of ...
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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