Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, 1854 - 396 стор. |
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Сторінка vi
... Glass in accelerating Germination ; " and No. IV . , " On the Glass in the Palm House at the Royal Botanical Gardens at Kew . " PREFACE TO SECOND EDITION . vii In submitting this Volume vi PREFACE TO SECOND EDITION .
... Glass in accelerating Germination ; " and No. IV . , " On the Glass in the Palm House at the Royal Botanical Gardens at Kew . " PREFACE TO SECOND EDITION . vii In submitting this Volume vi PREFACE TO SECOND EDITION .
Сторінка xv
... 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 the ...
... 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 the ...
Сторінка 18
... glass . Dr. Herschel was , however , led to suspect that this was not the fact , from the following circumstances ... glasses . What appeared re- markable was , that when I used some of them , I felt a sensation of heat , though I had ...
... glass . Dr. Herschel was , however , led to suspect that this was not the fact , from the following circumstances ... glasses . What appeared re- markable was , that when I used some of them , I felt a sensation of heat , though I had ...
Сторінка 22
... glasses , acts upon it with different degrees of intensity . Thus it is found that red rays , or the common sunbeams passed through red glass , have very little action upon it ; yellow and green are more efficacious , but blue and ...
... glasses , acts upon it with different degrees of intensity . Thus it is found that red rays , or the common sunbeams passed through red glass , have very little action upon it ; yellow and green are more efficacious , but blue and ...
Сторінка 36
... glass , in the path of the sunbeam , when that luminary will be distinctly seen through the hole , or , if we receive such an image when the sun is partially eclipsed , it will exhibit only the still luminous portion of the disc . ( 42 ...
... glass , in the path of the sunbeam , when that luminary will be distinctly seen through the hole , or , if we receive such an image when the sun is partially eclipsed , it will exhibit only the still luminous portion of the disc . ( 42 ...
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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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