The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1855 |
Vanuit het boek
Resultaten 1-5 van 84
Pagina 27
... heat , a ship properly navigated may be speeding on her way under favorable circum- stances . There is no reason of any insuperable nature why every part of the sea should not be known as well as the land , if not indeed better than the ...
... heat , a ship properly navigated may be speeding on her way under favorable circum- stances . There is no reason of any insuperable nature why every part of the sea should not be known as well as the land , if not indeed better than the ...
Pagina 39
... heat and moisture has been long known and practised upon ; and when we see the wonderfully perfect results of such simple but effective machinery , it appears strange that its application should never have been made before the present ...
... heat and moisture has been long known and practised upon ; and when we see the wonderfully perfect results of such simple but effective machinery , it appears strange that its application should never have been made before the present ...
Pagina 43
... heat , for eight or ten hours , can be worse than continuing the same heat for an hour , then a moderate fire for an hour , and so on alter- nately , with the consequent expansion and contraction , and this continued day after day , for ...
... heat , for eight or ten hours , can be worse than continuing the same heat for an hour , then a moderate fire for an hour , and so on alter- nately , with the consequent expansion and contraction , and this continued day after day , for ...
Pagina 44
... heat , which has been the real difficulty with other engines for burning anthracite , is preserved , while it has been burned out in all other engines in a few weeks . " The economy of anthracite engines is now in process of proof by ...
... heat , which has been the real difficulty with other engines for burning anthracite , is preserved , while it has been burned out in all other engines in a few weeks . " The economy of anthracite engines is now in process of proof by ...
Pagina 45
... heat ; that is to say , having a higher tempera- ture than is normal to the same pressure of saturated , or ordinary steam ; but it intends the use of a mixture of saturated and surcharged steam . I prefer these terms of saturated and ...
... heat ; that is to say , having a higher tempera- ture than is normal to the same pressure of saturated , or ordinary steam ; but it intends the use of a mixture of saturated and surcharged steam . I prefer these terms of saturated and ...
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.