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 14
... carbonic acid was absorbed by the plant , that under the influence of Light it was decomposed , and that its oxygen was again li- berated . Upon the publication of Priestley's researches , a great number of naturalists and chemists took ...
... carbonic acid was absorbed by the plant , that under the influence of Light it was decomposed , and that its oxygen was again li- berated . Upon the publication of Priestley's researches , a great number of naturalists and chemists took ...
Сторінка 159
... carbonic acid in contact with the air , and becomes brown , even in the dark . If , when recently prepared , it is exposed to Light , a very rapid darkening is brought on , which , it appears probable , may be advantageously employed in ...
... carbonic acid in contact with the air , and becomes brown , even in the dark . If , when recently prepared , it is exposed to Light , a very rapid darkening is brought on , which , it appears probable , may be advantageously employed in ...
Сторінка 190
... carbonic acid , it could not be rendered green at any distance from the lens , but was rapidly restored from green to yellow by the red rays . Thence he inferred that the rays of greatest refrangibility favour disoxygenation , but that ...
... carbonic acid , it could not be rendered green at any distance from the lens , but was rapidly restored from green to yellow by the red rays . Thence he inferred that the rays of greatest refrangibility favour disoxygenation , but that ...
Сторінка 193
... a rich and most beau- tiful blue colour . Sir John Herschel attributes these changes to the escape of carbonic acid in some cases ; to a chemical alteration , depending on the absorption of O : - oxygen , in others ; and again in.
... a rich and most beau- tiful blue colour . Sir John Herschel attributes these changes to the escape of carbonic acid in some cases ; to a chemical alteration , depending on the absorption of O : - oxygen , in others ; and again in.
Сторінка 208
... Carbonic acid was unknown to Priestley and those who laboured in the same field with him . Dr. Ingenhousz * , for example , says , " The * Ingenhouz's Experiments on Vegetables . PRIESTLEY'S EXPERIMENTS . 209 air obtained from the ...
... Carbonic acid was unknown to Priestley and those who laboured in the same field with him . Dr. Ingenhousz * , for example , says , " The * Ingenhouz's Experiments on Vegetables . PRIESTLEY'S EXPERIMENTS . 209 air obtained from the ...
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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