The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volumen7Gould, Kendall, and Lincoln, 1856 |
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Página 1
... EXHIBITING THE MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS IN MECHANICS , USEFUL ARTS , NATURAL PHILOSOPHY , CHEMISTRY , ASTRONOMY , METEOROLOGY , ZOOLOGY , BOTANY , MINER- ALOGY , GEOLOGY , GEOGRAPHY , ANTIQUITIES , ETC. TOGETHER WITH ...
... EXHIBITING THE MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS IN MECHANICS , USEFUL ARTS , NATURAL PHILOSOPHY , CHEMISTRY , ASTRONOMY , METEOROLOGY , ZOOLOGY , BOTANY , MINER- ALOGY , GEOLOGY , GEOGRAPHY , ANTIQUITIES , ETC. TOGETHER WITH ...
Página 44
... exhibited . The principle on which this engine acts is that of first filling the cylinder to a certain extent with explosive gas , next igniting the gas by an electric spark or otherwise , and allowing the piston to travel to the end of ...
... exhibited . The principle on which this engine acts is that of first filling the cylinder to a certain extent with explosive gas , next igniting the gas by an electric spark or otherwise , and allowing the piston to travel to the end of ...
Página 64
... exhibited on the same occasion , and is thus described in the London Agricultural Gazette : - " The whole apparatus is novel , and , we may say , uncommonly promising . Instead of a heavy wire rope to drag the plow frame by main force ...
... exhibited on the same occasion , and is thus described in the London Agricultural Gazette : - " The whole apparatus is novel , and , we may say , uncommonly promising . Instead of a heavy wire rope to drag the plow frame by main force ...
Página 85
... exhibited to the meeting . It was devised by Mr. Smee , who received for it a gold medal from the Society , and it has stood for 14 years the test of experience . At the bank large batteries are employed , holding several gallons of the ...
... exhibited to the meeting . It was devised by Mr. Smee , who received for it a gold medal from the Society , and it has stood for 14 years the test of experience . At the bank large batteries are employed , holding several gallons of the ...
Página 90
... exhibited . IMPROVEMENTS IN AMALGAMATORS . An improved amalgamator patented by Samuel Gardiner , Jr. , of New York , consists of one or more pairs of metallic rollers geared together and revolving in a trough in contact with mercury ...
... exhibited . IMPROVEMENTS IN AMALGAMATORS . An improved amalgamator patented by Samuel Gardiner , Jr. , of New York , consists of one or more pairs of metallic rollers geared together and revolving in a trough in contact with mercury ...
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action alkaline American ammonia animals apatite apparatus appears applied arranged body boiler carbonic acid carboniferous cent chloride cholera cloth coal color common connected consists containing copper cretaceous crystals cylinder Daguerreotype deposit diameter distance earth effect electricity employed engine England exhibited experiments fact feet fiber fire fossil glass grains gutta-percha heat hydrochloric acid improvement inches invention iron length light lime machine manganese manufacture mass matter means metal miles mineral minutes motion nitric acid observed obtained operation ordinary oxyd oxygen paper pass patented piece placed plate portion potash pounds present produced Professor quantity recently rocks salt screw side silicate silicium Silurian silver soda solution species specific gravity specimens steam substance sulphate sulphuric acid surface temperature thickness tion tons tube valve vapor vessel weight whole wire wood zinc zodiacal light
Pasajes populares
Página 161 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man, who has in philosophical matters a competent faculty of thinking, can ever fall into it.
Página 1 - WASHINGTON STREET, BOSTON, ANNUAL OF SCIENTIFIC DISCOVERY ; or, Year Book of Facts in Science and Art, exhibiting the most important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Meteorology, Zoology, Botany, Mineralogy, Geology, Geography, Antiquities, etc.
Página 162 - ... suspended, ie rendered existent without action or without its equivalent action. The conservation of power is now a thought deeply impressed upon the minds of philosophic men ; and I think that, as a body, they admit that the creation or annihilation of force is equally impossible with the creation or annihilation of matter. But if we conceive the sun existing alone in space, exerting no force of gravitation exterior to it; and then- conceive another sphere in space having like conditions, and...
Página 163 - The third sub-case remains, namely, that the power is always existing around the sun and through infinite space, whether secondary bodies be there to be acted upon by gravitation or not: and not only around the sun, but around every particle of matter which has existence. This case of a constant necessary condition to action in space, when as respects the sun the earth is not in place, and of a certain gravitating action as the result of that previous condition when the earth...
Página 163 - Trans. 1851, p. 1) ; but the results were entirely negative. The view, if held for a moment, would imply that not merely the sun, but all matter, whatever its state, would have extra powers set up in it, if removed in any degree from gravitation; that the particles of a comet at its perihelion would have changed in character, by the conversion of some portion of their molecular force into the increased amount of gravitating...