The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1855 |
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Pagina 3
... Prof. Jas . D. Dana . The Association was divided into two sections - the physical and the chemical . The whole number of communications presented was 92 : 37 in Physics and Astronomy ; 12 in Meteorology ; 25 in Geology and Mineralogy ...
... Prof. Jas . D. Dana . The Association was divided into two sections - the physical and the chemical . The whole number of communications presented was 92 : 37 in Physics and Astronomy ; 12 in Meteorology ; 25 in Geology and Mineralogy ...
Pagina 10
... Prof. Baum . The meeting was well attended , most of the distinguished scientific men of Germany being present . After the formal opening of the session , and a few remarks by the President , Prof. Wagner , ( Hofrath , ) of Göttingen ...
... Prof. Baum . The meeting was well attended , most of the distinguished scientific men of Germany being present . After the formal opening of the session , and a few remarks by the President , Prof. Wagner , ( Hofrath , ) of Göttingen ...
Pagina 11
... Prof. Karnat stated that Germany possesses coal sufficient to supply the whole world with fuel for at least 500 years . At the same Congress it was reported that a number of perfect hu- man skulls with teeth in them had been found in ...
... Prof. Karnat stated that Germany possesses coal sufficient to supply the whole world with fuel for at least 500 years . At the same Congress it was reported that a number of perfect hu- man skulls with teeth in them had been found in ...
Pagina 14
... Prof. Encke , clearly indicated that Clapperton and Denham's position was too far to the east , but left the precise distance undetermined . It was reserved for Dr. Vogel to solve this vexata quæstio , which , for one of his age , ( 22 ...
... Prof. Encke , clearly indicated that Clapperton and Denham's position was too far to the east , but left the precise distance undetermined . It was reserved for Dr. Vogel to solve this vexata quæstio , which , for one of his age , ( 22 ...
Pagina 20
... Prof. J. M. Safford , of Cumberland University , Tennessee . Prof. S. is well prepared for his duties , and his final reports will beyond doubt prove both valuable and honorable to the State and to Science . Dr. William Kitchell , of ...
... Prof. J. M. Safford , of Cumberland University , Tennessee . Prof. S. is well prepared for his duties , and his final reports will beyond doubt prove both valuable and honorable to the State and to Science . Dr. William Kitchell , of ...
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 |
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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.