On a new series of chemical reactions produced by light1868 - 102 стор. |
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absorbed acid was permitted acid was placed Acid.—The aqueous solution action of light air and vapour amyl indicates amyl is probably aqueous vapour axis beam which produced beauty blue bluish Brücke's centrated beam chemical action chemical energy CHEMICAL REACTIONS PRODUCED cloud resembling cloud was formed colour cord of cloud cork decomposition of Nitrite disks distant end effect electric beam electric lamp electric light enter the experimental exceedingly experimental tube exquisite filled the experimental film filmy five inches funnels glass tube hydriodic acid hydrobromic acid hydrochloric acid iodide of allyl iodine iridescent lens light continued liquid nitrite liquid spherules luminous beam mastic ment mental tube minutes mixed air molecule nitrite of amyl nitrite-of-amyl vapour optically empty partially darkened particles permitted to enter portion precipitated vapour PRODUCED BY LIGHT radiant heat shape solution of hydrobromic sorption substance tube was filled tube was optically vapour were allowed vase vehicle vibrations waves Woulfe's flask
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Сторінка 102 - I showed the cloud likened it to one of those jelly-like marine organisms which a film barely capable of reflecting the light renders visible. Indeed no other comparison is so suitable ; and not only did the perfect symmetry of the exterior suggest this idea, but the exquisite casing and folding of film within film suggested the internal economy of a highly complex organism. The twoness of the animal form was displayed throughout, and no coil, disk, or speck existed on one side of the axis of the...
Сторінка 102 - Placed on the base of the cone was an exquisite vase, from the interior of which sprung another vase of similar shape ; over the edges of these vases fell the faintest clouds, resembling spectral sheets of liquid. From the centre of the upper vase a straight cord of cloud passed for some distance along the axis of the experimental tube, and at each side of this cord two involved and highly iridescent vortices were generated. The frontal portion of the cloud, which the cord penetrated, assumed in...
Сторінка 102 - Gassiot's discharges ; but in complexity and, indeed, in beauty, the discharges would not bear comparison with these arrangements of cloud. A friend to whom I showed the cloud likened it to one of those jelly-like marine organisms which a film barely capable of reflecting the light renders visible. Indeed no other comparison is so suitable ; and not only did the perfect symmetry of the exterior suggest this idea, but the exquisite casing and folding of film within film suggested the internal economy...
Сторінка 92 - It consists in subjecting the vapours of volatile liquids to the action of concentrated sunlight, or to the concentrated beam of the electric light.
Сторінка 102 - ... over the edges of these vases fell the faintest clouds, resembling spectral sheets of liquid. From the centre of the upper vase a straight cord of cloud passed for some distance along the axis of the experimental tube, and at each side of this cord two involved and highly iridescent vortices were generated. The frontal portion of the cloud, which the cord penetrated, assumed in succession the forms of roses, tulips, and sunflowers. It also passed through the appearance of a series of beautifully...
Сторінка 97 - ... Newton's mode of regarding the generation of the colour of the firmament than that here exhibited, for never, even in the skies of the Alps, have I seen a richer or a purer blue than that attainable by a suitable disposition of the light falling upon the precipitated vapour. May not the aqueous...
Сторінка 97 - But the development of colour in the attenuated nitrite-of-amyl vapour, though admitting of the same explanation, is doubtless more similar to what takes place in our atmosphere. The blue, moreover, is purer and more sky-like than that obtained from Briicke's turbid medium. There could scarcely be a more impressive illustration of Newton's mode of regarding the generation of the colour of the firmament than that here exhibited ; for never, even in the skies of the Alps, have I seen a richer or a...
Сторінка 102 - The development of the cloud was like that of an organism, from a more or less formless mass at the commencement, to a structure of marvellous complexity.
Сторінка 102 - October with hydriodic acid. The cloud extended for about 18 inches along the tube, and gradually shifted its position from the end nearest the lamp to the most distant end. The portion quitted by the cloud proper was filled by an amorphous haze, the decomposition which was progressing lower down being here apparently complete. A spectral cone turned its apex towards the distant end of the tube, and from its circular base filmy drapery seemed to fall. Placed on the base of the cone was an exquisite...
Сторінка 101 - ... The aqueous solution of hydrochloric acid yields a vapor which required an exposure of 15 or 20 minutes to the electric light for the production of a fully developed cloud. It was then divided into several sections, united to each other by a slender axis. "Each of these sections,