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 xxii
... LEAVES F40 50 -60 W 9 HEAT ACTINISM 9 10 11 12 13 15 16 17 18 14 19 SOLAR SPECTRA . THE CURVED LINES SHOWING THE POINTS OF MAXIMUM EFFECT . LINEAR SPECTRA , EXHIBITING THE EXTENT OVER WHICH CHEMICAL ACTION OF ANY KIND CAN BE DETECTED ...
... LEAVES F40 50 -60 W 9 HEAT ACTINISM 9 10 11 12 13 15 16 17 18 14 19 SOLAR SPECTRA . THE CURVED LINES SHOWING THE POINTS OF MAXIMUM EFFECT . LINEAR SPECTRA , EXHIBITING THE EXTENT OVER WHICH CHEMICAL ACTION OF ANY KIND CAN BE DETECTED ...
Сторінка 2
... leaf , the for- mation of the flower , of the fruit and of the seed , were soon found to be under the influence of the orb of day . In spring and summer external nature was seen to grow into strength and beauty , and through autumn and ...
... leaf , the for- mation of the flower , of the fruit and of the seed , were soon found to be under the influence of the orb of day . In spring and summer external nature was seen to grow into strength and beauty , and through autumn and ...
Сторінка 15
... leaves from the action of Light prevents their change of colour in the autumn ; that if the entire leaf was placed in the dark it fell off green ; if only a part , the rest of the parenchyma changed colour , and the co- vered portion ...
... leaves from the action of Light prevents their change of colour in the autumn ; that if the entire leaf was placed in the dark it fell off green ; if only a part , the rest of the parenchyma changed colour , and the co- vered portion ...
Сторінка 23
... leaves and the wings of insects may be pretty accurately represented by means of it ; and in this case it is only necessary to cause the direct solar Light to pass through them , and to receive the shadows upon prepared leather ...
... leaves and the wings of insects may be pretty accurately represented by means of it ; and in this case it is only necessary to cause the direct solar Light to pass through them , and to receive the shadows upon prepared leather ...
Сторінка 44
... leaves . These experiments were made by pass- ing a beam of solar light , concentrated by a lens , into the solution or substance under observation . Upon examin- ing the quinine solution in this way , it was found that light was ...
... leaves . These experiments were made by pass- ing a beam of solar light , concentrated by a lens , into the solution or substance under observation . Upon examin- ing the quinine solution in this way , it was found that light was ...
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Загальні терміни та фрази
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