The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1855 |
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Pagina 5
... earth's magnetism . From the address of the President we make the following extracts , as illustrative of the progress of science during the past year . In respect to the progress of astronomical science , the large number of planets ...
... earth's magnetism . From the address of the President we make the following extracts , as illustrative of the progress of science during the past year . In respect to the progress of astronomical science , the large number of planets ...
Pagina 24
... fatally as that of exploration in the polar regions . Man is forbidden to reach that inhospitable limit of the earth's surface . THE ANNUAL OF SCIENTIFIC DISCOVERY . MECHANICS AND USEFUL ARTS 24 NOTES BY THE EDITOR .
... fatally as that of exploration in the polar regions . Man is forbidden to reach that inhospitable limit of the earth's surface . THE ANNUAL OF SCIENTIFIC DISCOVERY . MECHANICS AND USEFUL ARTS 24 NOTES BY THE EDITOR .
Pagina 53
... earth . Mr. Gowen took out with him twenty - four of these iron powder cylinders . He used only twelve of them . His divers descended in their armor , pointed the cylinders prop- erly ; these were turned by shafts worked from above ...
... earth . Mr. Gowen took out with him twenty - four of these iron powder cylinders . He used only twelve of them . His divers descended in their armor , pointed the cylinders prop- erly ; these were turned by shafts worked from above ...
Pagina 78
... earth , and compel the wheel to rotate , thus carrying up and dis- charging from the top all the earth caught by the scoop , which is in imme- diate contact behind . On the extreme rear of the whole are adjusted two cutters or small ...
... earth , and compel the wheel to rotate , thus carrying up and dis- charging from the top all the earth caught by the scoop , which is in imme- diate contact behind . On the extreme rear of the whole are adjusted two cutters or small ...
Pagina 110
... earth is precipi- tated . Remembering that potash and soda form , with gum , grease , oils , coloring matters generally , and silicia , soluble salts , and that the alkaline earths form with the same substances insoluble salts , let us ...
... earth is precipi- tated . Remembering that potash and soda form , with gum , grease , oils , coloring matters generally , and silicia , soluble salts , and that the alkaline earths form with the same substances insoluble salts , let us ...
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.