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 9
... obtained . A large amount of curious facts was col- lected - effects depending on very diversified causes were recorded , all of which were attributed to that element which the author was inclined to regard as the most im- portant and ...
... obtained . A large amount of curious facts was col- lected - effects depending on very diversified causes were recorded , all of which were attributed to that element which the author was inclined to regard as the most im- portant and ...
Сторінка 17
... obtained by Ritter and Wollaston : " In order to complete the com- parison of their properties ( the chemical rays ) with those of visible Light , I was desirous of examining the effect of their reflection from a thin plate of air ...
... obtained by Ritter and Wollaston : " In order to complete the com- parison of their properties ( the chemical rays ) with those of visible Light , I was desirous of examining the effect of their reflection from a thin plate of air ...
Сторінка 39
... obtain this proof in the following manner : -If the screen upon which the spectrum is received is brought nearer the ... obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those ...
... obtain this proof in the following manner : -If the screen upon which the spectrum is received is brought nearer the ... obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those ...
Сторінка 43
... obtained which will be pure , the very trifling quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation ...
... obtained which will be pure , the very trifling quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation ...
Сторінка 48
... obtain a spectrum in which we have not some error arising from this cause . In our future examination of the heating ... obtaining a pure spectrum described . ( 62. ) Howsoever pure the spectrum may be , it is not an uninterrupted line ...
... obtain a spectrum in which we have not some error arising from this cause . In our future examination of the heating ... obtaining a pure spectrum described . ( 62. ) Howsoever pure the spectrum may be , it is not an uninterrupted line ...
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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