Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1850 |
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Página 13
... iron rollers , placed on the summits of the towers , the movements of which will relieve the towers of the strain consequent upon the contraction and elongation of the wires , occasioned by the changes of temperature . The flooring is ...
... iron rollers , placed on the summits of the towers , the movements of which will relieve the towers of the strain consequent upon the contraction and elongation of the wires , occasioned by the changes of temperature . The flooring is ...
Página 14
... IRON - ARCHED BRIDGE ON THE PENNSYLVANIA CENTRAL RAILROAD . THE chief peculiarity of this bridge consists in its iron arch , which is extended to a very considerable span , and furnishes a highly impor- tant test of the powers of ...
... IRON - ARCHED BRIDGE ON THE PENNSYLVANIA CENTRAL RAILROAD . THE chief peculiarity of this bridge consists in its iron arch , which is extended to a very considerable span , and furnishes a highly impor- tant test of the powers of ...
Página 15
... iron , all of which were perfectly sat- isfactory . THE BRITANNIA TUBULAR BRIDGE . In describing this great triumph of modern art , it will be at once the easiest and the clearest mode of proceeding to divide our description into four ...
... iron , all of which were perfectly sat- isfactory . THE BRITANNIA TUBULAR BRIDGE . In describing this great triumph of modern art , it will be at once the easiest and the clearest mode of proceeding to divide our description into four ...
Página 16
... iron - work , and 800 on the stone for the towers . We will describe the construction of the various por- tions . Plates . The wrought - iron plates which form the top , bottom , and sides of the Britannia " land tubes , " 230 feet in ...
... iron - work , and 800 on the stone for the towers . We will describe the construction of the various por- tions . Plates . The wrought - iron plates which form the top , bottom , and sides of the Britannia " land tubes , " 230 feet in ...
Página 17
... iron from one half to three fourths of an inch in thickness . Some of the steam - arms or levers just described are gifted with what may be termed " double thumbs , " and accordingly these perfo- rate two holes at a time , or forty per ...
... iron from one half to three fourths of an inch in thickness . Some of the steam - arms or levers just described are gifted with what may be termed " double thumbs , " and accordingly these perfo- rate two holes at a time , or forty per ...
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Academy action Agassiz American ammonia animal apparatus appearance ascer Athenæum atmosphere bituminous coal boiler bones Boston carbon carbonic acid cent chemical chloroform coal coast color connected containing copper crystals cylinder deposits diameter discovered discovery distance effect electric engine evaporation examination experiments fact feet flour fossil glass goitre gold gun-cotton gutta-percha heat inches invention iron island Journal Kilauea kyanized Lake Lake Superior length light lime liquid London longitude machine magnesia magnetic manufacture mass matter means meerschaum metal miles nearly nitric acid observations obtained oxide paper passed patent phenomena plant plates portion pounds present principle produced Prof Professor proportion quantity R. I. Murchison recently remarkable river rocks salt Science scientific solution species specimens square miles steam substance sugar sulphuric acid surface temperature thickness tion tons tube vessel weight whole wires zinc
Pasajes populares
Página 355 - Mayne, like a shewer from the South to the North, and from the North to the West, and then downe to the South againe.
Página 237 - We found the pillar to be of solid salt, capped with carbonate of lime, cylindrical in front and pyramidal behind. The upper or rounded part is about forty feet high, resting on a kind of oval pedestal, from forty to sixty feet above the level of the sea. It slightly decreases in size upwards, crumbles at the top, and is one entire mass of crystallization.
Página 5 - 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 147 - Sometimes it will be more convenient to arrange the two charts in symmetrical positions, one to the left and the other to the right of the subject's median plane, and with a slight inclination toward this plane.