The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1855 |
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Pagina 12
... fibres , & c .; models of school - houses , copy - books , school clocks , globes , stationery , drawing and coloring ... fibre , with various models , & c . America , especially the United States , was largelv represented with various ...
... fibres , & c .; models of school - houses , copy - books , school clocks , globes , stationery , drawing and coloring ... fibre , with various models , & c . America , especially the United States , was largelv represented with various ...
Pagina 38
... fibres of the wood upon the inner side must be packed more densely . The wood is steamed for from half to one hour for each inch of thickness , and put into the machine warm and moist , and as it takes its bent position the inner fibres ...
... fibres of the wood upon the inner side must be packed more densely . The wood is steamed for from half to one hour for each inch of thickness , and put into the machine warm and moist , and as it takes its bent position the inner fibres ...
Pagina 46
... fibres and increase the liability to break . Boiler - plates are also frequently injured by the operation of punching for melting . Mr. Roberts attributed boiler explosions in most instances to the defective construction . He was of ...
... fibres and increase the liability to break . Boiler - plates are also frequently injured by the operation of punching for melting . Mr. Roberts attributed boiler explosions in most instances to the defective construction . He was of ...
Pagina 87
... fibre does not lie in circles upon the cocoon , but describes a form very similar to the figure 8 , placed on the surface in a longitudinal direction , thus , . As the filament is drawn off , MECHANICS AND USEFUL ARTS . 87.
... fibre does not lie in circles upon the cocoon , but describes a form very similar to the figure 8 , placed on the surface in a longitudinal direction , thus , . As the filament is drawn off , MECHANICS AND USEFUL ARTS . 87.
Pagina 88
... fibre as when it is moist . After descending from the cleansing part , the six filaments pass through a small curve ... fibres . A bobbin of China silk was inspected of double the fineness of any China silk imported , equal to the finest ...
... fibre as when it is moist . After descending from the cleansing part , the six filaments pass through a small curve ... fibres . A bobbin of China silk was inspected of double the fineness of any China silk imported , equal to the finest ...
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
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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.