The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volumen7Gould, Kendall, and Lincoln, 1856 |
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Página 24
... fire without blister- ing or discoloration , and be sufficiently hard to resist scratches . For an account of the processes involved in the preparation of animal charcoal , and its recent applications to manufacturing and other purposes ...
... fire without blister- ing or discoloration , and be sufficiently hard to resist scratches . For an account of the processes involved in the preparation of animal charcoal , and its recent applications to manufacturing and other purposes ...
Página 30
... fire surface is 4,500.44 superficial feet . On the trial trip this steamer ( named the Ocean Bird ) averaged 17 revolutions a minute with 23 lbs . of steam , running 17 miles an hour against a three - knot tide and a strong head wind ...
... fire surface is 4,500.44 superficial feet . On the trial trip this steamer ( named the Ocean Bird ) averaged 17 revolutions a minute with 23 lbs . of steam , running 17 miles an hour against a three - knot tide and a strong head wind ...
Página 36
... fire - box of the exploded boiler , the stays being in squares , 5 inches asunder , and the side containing 16 squares of 25 inches area ; the other contained 25 squares of 16 inches area , the stays being 4 inches asunder . One side of ...
... fire - box of the exploded boiler , the stays being in squares , 5 inches asunder , and the side containing 16 squares of 25 inches area ; the other contained 25 squares of 16 inches area , the stays being 4 inches asunder . One side of ...
Página 38
... fire - box , around which it is coiled , thence onward passing into the water - space and up above the fire - box or flues , where it enters or becomes a sprinkler , which extends through the length of the boilers , above the furnace ...
... fire - box , around which it is coiled , thence onward passing into the water - space and up above the fire - box or flues , where it enters or becomes a sprinkler , which extends through the length of the boilers , above the furnace ...
Página 39
... fire when running at the greatest speed . Conduits are provided , lead- ing the products of combustion from the flues up the stack while a damper is open and the fire is kindling and steam is raising , but when steam is up , the damper ...
... fire when running at the greatest speed . Conduits are provided , lead- ing the products of combustion from the flues up the stack while a damper is open and the fire is kindling and steam is raising , but when steam is up , the damper ...
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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...