Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic Processes |
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Page xiv
... bodies between the cord and the ear , we prove that the air partakes of the undulations of the string . Upon a fancied analogy , hypothesis creates the ether , and then sets it vibrating to produce an effect on the eye of a similar ...
... bodies between the cord and the ear , we prove that the air partakes of the undulations of the string . Upon a fancied analogy , hypothesis creates the ether , and then sets it vibrating to produce an effect on the eye of a similar ...
Page xviii
... bodies act differently upon them . A diaphanous body for Light may be perfectly opake for the chemical power , and a medium nearly opake for Light may be quite transparent to the chemical principle . Heat not being the subject under ...
... bodies act differently upon them . A diaphanous body for Light may be perfectly opake for the chemical power , and a medium nearly opake for Light may be quite transparent to the chemical principle . Heat not being the subject under ...
Page 3
... bodies were felt out ; but they were at length induced to abandon this absurdity , and adopted the idea of Light as a peculiar medium , through which impressions were made on the eye , but in what manner was left quite undetermined ...
... bodies were felt out ; but they were at length induced to abandon this absurdity , and adopted the idea of Light as a peculiar medium , through which impressions were made on the eye , but in what manner was left quite undetermined ...
Page 4
... bodies , is the sole subject of investigation . ( 6. ) Although the most ordinary observer must , through all time , have noticed that the sun's rays weakened and even destroyed some colours , while others were darkened by their ...
... bodies , is the sole subject of investigation . ( 6. ) Although the most ordinary observer must , through all time , have noticed that the sun's rays weakened and even destroyed some colours , while others were darkened by their ...
Page 5
... bodies . ( 9. ) " The sun's rays , " Homberg at a much later period says , " will insinuate themselves into bodies so as greatly to increase their weight ; " and he seriously relates that four ounces of Regulus Martis , in powder , were ...
... bodies . ( 9. ) " The sun's rays , " Homberg at a much later period says , " will insinuate themselves into bodies so as greatly to increase their weight ; " and he seriously relates that four ounces of Regulus Martis , in powder , were ...
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Common terms and phrases
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 Daguerreotype dark darkened distilled water dried Edition effect Engravings evident experiments exposed exposure ferrocyanide 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 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 solution of nitrate space sun's rays sunshine surface tint tion uranium glass vapour vegetable violet rays visible vols washed Woodcuts yellow ray
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