The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1855 |
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Pagina 20
... rock from St. Genevieve , Missouri , which has been used to some extent in St. Louis . The structure of this rock is as curious as the wrought samples are beau- tiful . In Pike county a variety of marble conglomerate , resembling the ...
... rock from St. Genevieve , Missouri , which has been used to some extent in St. Louis . The structure of this rock is as curious as the wrought samples are beau- tiful . In Pike county a variety of marble conglomerate , resembling the ...
Pagina 56
... rock , and pre- parations are making for excavating the rock into level beds for receiving the masonry . ACTION OF SEA - WATER ON CEMENTS . M. M. Malaguti and Durocher , have lately devoted much attention to the action of sea - water on ...
... rock , and pre- parations are making for excavating the rock into level beds for receiving the masonry . ACTION OF SEA - WATER ON CEMENTS . M. M. Malaguti and Durocher , have lately devoted much attention to the action of sea - water on ...
Pagina 79
... rock and ore , to use bore holes , from two to two and a half inches in diameter , and thirty - six to forty inches deep . The packing of such holes with clay be- ing a very tedious operation , Mr. A. Keszt endeavored to substitute ...
... rock and ore , to use bore holes , from two to two and a half inches in diameter , and thirty - six to forty inches deep . The packing of such holes with clay be- ing a very tedious operation , Mr. A. Keszt endeavored to substitute ...
Pagina 149
... rocks . He has found out that , besides being feebly attracted by the magnet , they have polar magnetism , which ... rock . To exhibit the feeble magnetism of mineral substances , he urges experi- menters to use an instrument he has ...
... rocks . He has found out that , besides being feebly attracted by the magnet , they have polar magnetism , which ... rock . To exhibit the feeble magnetism of mineral substances , he urges experi- menters to use an instrument he has ...
Pagina 173
... rock - crystal , gave distinct tones ; on the clean edge of a cube of fluor spar the tones were still more musical ; on a mass of rock salt the vibrations were very forcible . There is scarcely a substance , metallic or non - metallic ...
... rock - crystal , gave distinct tones ; on the clean edge of a cube of fluor spar the tones were still more musical ; on a mass of rock salt the vibrations were very forcible . There is scarcely a substance , metallic or non - metallic ...
Overige edities - Alles bekijken
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art Volledige weergave - 1857 |
Veelvoorkomende woorden en zinsdelen
acid action alloxan ammonia amount animal apparatus appears atmosphere axis battery body boiler Bone phosphate British Association carbon carbonic acid cause cent chemical chloride coal color common containing copper cylinder deposits diameter earth effect electricity employed engines England exhibited experiments fact feet fibre fluid fluorides fossil glass guano gutta percha heat hydrochloric acid hydrofluoric acid hydrogen important inches increased invention iodine iron light lime liquid lower machine magnetism manufacture mass matter means metal metal leaf miles motion murexide natural nitric acid observations obtained operation ordinary oxide paper passed phosphorus plants plate potash pounds present pressure produced Prof proportion quantity recently remarkable rocks sal ammoniac salt ships Silurian solution species steam substance sulphur surface temperature tion Torbane tube vegetable vessel weight whole wire wood zinc
Populaire passages
Pagina 165 - ... the same voltaic source, the same current in the same length of the same wire, gives a different result as the intensity is made to vary, with variations of the induction around the wire. The idea of intensity or the power of overcoming resistance, is as necessary to that of electricity, either static or current, as the idea of pressure is to steam in a boiler, or to air passing through apertures or tubes ; and we must have language competent to express these conditions and these ideas.
Pagina 228 - The natural excitation of osmose in the substance of the membranes or cell-walls dividing such solutions seems, therefore, almost inevitable. In osmose there is, further, a remarkably direct substitution of one of the great forces of Nature by its equivalent in another force — the conversion, as it may be said, of chemical affinity into mechanical power. Now, what is...
Pagina 165 - The production of a polarized state of the particles of neighboring matters by an excited body, constitutes induction, and this arises from its action upon the particles in immediate contact with it, which again act upon those contiguous to them, and thus the forces are transferred to a distance. If the induction remain undiminished, then perfect insulation is the consequence ; and the higher the polarized condition which the particles can acquire or maintain, the higher is the intensity which may...
Pagina 348 - Nymphaa alba, though it may be larger; nor is it so abundant an ornament of the tropical waters as the latter is of ours. But the question is not to be decided by a comparison of individual plants, or the effects they may produce in the landscape, but on the frequency with which they occur, and the proportion the brilliantly coloured bear to the inconspicuous plants.