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
... yellow glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue glasses rapidly change the colour . The yellow glasses obstruct scarcely any Light ; the blue glasses may be so dark as to admit of ...
... yellow glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue glasses rapidly change the colour . The yellow glasses obstruct scarcely any Light ; the blue glasses may be so dark as to admit of ...
Сторінка 19
... yellow and green rays afforded the greatest quantity of Light , and that the violet ray had the least . In conclu- sion , Dr. Herschel asks , " May not the chemical properties of the prismatic colours be as different as those which re ...
... yellow and green rays afforded the greatest quantity of Light , and that the violet ray had the least . In conclu- sion , Dr. Herschel asks , " May not the chemical properties of the prismatic colours be as different as those which re ...
Сторінка 40
... yellow Light in the orange , yellow , and green , and these rays occupy 100 parts of the spectrum . 3. Blue Light is seen to exist in the violet , indigo , blue and green spaces , therefore occupying 250 parts out of the 360 . ( 49 ...
... yellow Light in the orange , yellow , and green , and these rays occupy 100 parts of the spectrum . 3. Blue Light is seen to exist in the violet , indigo , blue and green spaces , therefore occupying 250 parts out of the 360 . ( 49 ...
Сторінка 41
... yellow , and blue exist at every point of the solar spectrum . 2. As certain portions of red , yellow , and blue consti- tute white Light , the colour of every point of the spec- trum may be considered as consisting of the predominating ...
... yellow , and blue exist at every point of the solar spectrum . 2. As certain portions of red , yellow , and blue consti- tute white Light , the colour of every point of the spec- trum may be considered as consisting of the predominating ...
Сторінка 43
... yellow seen through blue glass of any thickness what- soever , always preserves its yellow tint , never passing into white . ( 54. ) Such is the state of the discussion as to the constitu- tion of the spectrum . Whether the theory of ...
... yellow seen through blue glass of any thickness what- soever , always preserves its yellow tint , never passing into white . ( 54. ) Such is the state of the discussion as to the constitu- tion of the spectrum . Whether the theory 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