Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, 1854 - 396 стор. |
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Сторінка 9
... chloride of ammonia ) crystallised more readily in the Light than they did in darkness . * These experiments continued , for some time , to excite considerable attention ; and in 1788 we find the " vegetation of salts the subject of ...
... chloride of ammonia ) crystallised more readily in the Light than they did in darkness . * These experiments continued , for some time , to excite considerable attention ; and in 1788 we find the " vegetation of salts the subject of ...
Сторінка 10
... horn silver . " Scheele continued his experiments on the chloride of gold , and some of the salts of manganese , obtaining similar results . SCHEELE'S EXPERIMENTS . 11 Again , Scheele writes , " 10 RESEARCHES ON LIGHT .
... horn silver . " Scheele continued his experiments on the chloride of gold , and some of the salts of manganese , obtaining similar results . SCHEELE'S EXPERIMENTS . 11 Again , Scheele writes , " 10 RESEARCHES ON LIGHT .
Сторінка 11
... chloride of silver in fifteen minutes , while the red rays required twenty minutes , and the other colours various intermediate periods . The bleaching of wax by exposure to the solar rays became also the subject of Senebier's ...
... chloride of silver in fifteen minutes , while the red rays required twenty minutes , and the other colours various intermediate periods . The bleaching of wax by exposure to the solar rays became also the subject of Senebier's ...
Сторінка 12
... chloride of gold , it was held , stretched horizontally , over the clear bright flame of a wax candle , the under side of the riband being kept at the distance of about an inch and a half above the point of the flame that part of the ...
... chloride of gold , it was held , stretched horizontally , over the clear bright flame of a wax candle , the under side of the riband being kept at the distance of about an inch and a half above the point of the flame that part of the ...
Сторінка 16
... chloride of silver darkened rapidly beyond the violet extremity of the prismatic spectrum ; in the violet ray it was less dark- ened ; still less in the blue ; below which ray the power of darkening diminished quickly . He also stated ...
... chloride of silver darkened rapidly beyond the violet extremity of the prismatic spectrum ; in the violet ray it was less dark- ened ; still less in the blue ; below which ray the power of darkening diminished quickly . He also stated ...
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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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