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 ix
... the characters of LIGHT OF HEAT , but which was intimately mixed with these elements in the solar rays . This subject is fully discussed in the third division of the Volume ; but I refer to it now , for the purpose of A 4.
... the characters of LIGHT OF HEAT , but which was intimately mixed with these elements in the solar rays . This subject is fully discussed in the third division of the Volume ; but I refer to it now , for the purpose of A 4.
Сторінка xviii
... Heat not being the subject under examination , does not require any particular mention ; the power that we possess , however , of separating Light and Heat will be described in the Appendix . Regarding , therefore , the chemical prin ...
... Heat not being the subject under examination , does not require any particular mention ; the power that we possess , however , of separating Light and Heat will be described in the Appendix . Regarding , therefore , the chemical prin ...
Сторінка xix
... Heat , or Photographic energy . " Under this impression , I proposed to adopt such a term as eveрynua , ENERGEMA ( energy ) , which was slightly modified and converted into ENERGIA , to which it was thought , if desirable , the ...
... Heat , or Photographic energy . " Under this impression , I proposed to adopt such a term as eveрynua , ENERGEMA ( energy ) , which was slightly modified and converted into ENERGIA , to which it was thought , if desirable , the ...
Сторінка xx
... HEAT are scarcely to be confounded with ACTINISM . Light does , by exciting vitality in living organisms , produce chemical decomposi- tion ; and there is reason for believing that on dead organic matter Light acts chemically , but ...
... HEAT are scarcely to be confounded with ACTINISM . Light does , by exciting vitality in living organisms , produce chemical decomposi- tion ; and there is reason for believing that on dead organic matter Light acts chemically , but ...
Сторінка 11
... heat which accom- panied it . ( 15. ) Count Rumford , in a Memoir " On the Propagation of Heat in Fluids , " published in the Philosophical Transac- tions , states , that he saw reason to doubt the existence of those chemical properties ...
... heat which accom- panied it . ( 15. ) Count Rumford , in a Memoir " On the Propagation of Heat in Fluids , " published in the Philosophical Transac- tions , states , that he saw reason to doubt the existence of those chemical properties ...
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actinic ammonia appears Becquerel bleaching blue rays bodies brown calotype camera obscura carbonic acid chemical action chemical change chemical rays chloride of silver chromate colour combination copper crown 8vo Daguerreotype dark darkened distilled water dried effect Engravings evident experiments exposed exposure fluid formed gallic acid germination glass gold green rays heat hyposulphite of soda impression indigo influence intensity iodide of silver iodine iron least refrangible Light luminous rays mercury metallic minutes morocco Niepce nitrate of silver nitric acid observed obtained orange oxide oxygen paper peculiar phenomena photographic picture placed plants plate 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 space sun's rays sunshine surface tint tion uranium glass vapour vegetable violet rays visible vols washed Woodcuts yellow ray