Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1850 |
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Página 23
... heat of the fire , rises by its inferior gravity through the bent tubes , and is diffused through all parts of the cellular vessel within the boiler . The excess of heat is there instantly given off to the water in the boiler , and the ...
... heat of the fire , rises by its inferior gravity through the bent tubes , and is diffused through all parts of the cellular vessel within the boiler . The excess of heat is there instantly given off to the water in the boiler , and the ...
Página 26
... heat of the steam , which is forced from the boiler through the iron tube until it comes in contact with the water . The pressure of the steam on the water compresses the air in the glass tube , so that double the pressure drives the ...
... heat of the steam , which is forced from the boiler through the iron tube until it comes in contact with the water . The pressure of the steam on the water compresses the air in the glass tube , so that double the pressure drives the ...
Página 27
... heat be- comes dangerous . The safety - valve can then be raised , so as to let off some of the steam , which will cause the water to foam up and cool the surface of the flues , and if the alarm is attended to in time there will be no ...
... heat be- comes dangerous . The safety - valve can then be raised , so as to let off some of the steam , which will cause the water to foam up and cool the surface of the flues , and if the alarm is attended to in time there will be no ...
Página 36
... heat , and are run back and forth from station to station , so that they are kept constantly in charge of the same persons . Repair- shops are attached to every engine - house , furnished with every tool or implement that the wants of ...
... heat , and are run back and forth from station to station , so that they are kept constantly in charge of the same persons . Repair- shops are attached to every engine - house , furnished with every tool or implement that the wants of ...
Página 37
... heat from radiation , ' " in suspending the carriages and machinery on springs , " " in applying elastic wheels to prevent shocks , " " in the mode of working the engines at their maximum speed , " " in preventing the slipping of the ...
... heat from radiation , ' " in suspending the carriages and machinery on springs , " " in applying elastic wheels to prevent shocks , " " in the mode of working the engines at their maximum speed , " " in preventing the slipping of the ...
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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.