Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1850 |
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Página 93
... carbon . It has the appearance of the finest indigo ; but a few days ' exposure turns it to a hard stone . The examining committee of the fair of the American Institute , of 1848 , reported that it was an article superior to every thing ...
... carbon . It has the appearance of the finest indigo ; but a few days ' exposure turns it to a hard stone . The examining committee of the fair of the American Institute , of 1848 , reported that it was an article superior to every thing ...
Página 103
... carbon , which are used as electrodes , that is to say , the current of electricity is passed from one to the other as they stand end to end , there ends being separated from one twentieth to one half an inch , according to the power of ...
... carbon , which are used as electrodes , that is to say , the current of electricity is passed from one to the other as they stand end to end , there ends being separated from one twentieth to one half an inch , according to the power of ...
Página 104
... carbon projected upon it from the lower electrode . The carbon is prepared by forming a powder of charcoal into paste with melted brown sugar , pressing it into iron moulds , and baking it in the moulds at a red heat , and afterwards in ...
... carbon projected upon it from the lower electrode . The carbon is prepared by forming a powder of charcoal into paste with melted brown sugar , pressing it into iron moulds , and baking it in the moulds at a red heat , and afterwards in ...
Página 105
... carbon , and in atmospheres of carbonic acid , nitrogen , and hydro- gen . The apparatus constructed for domestic use gives a light equal to from eight to forty candles . There is another point which appears to be important in consider ...
... carbon , and in atmospheres of carbonic acid , nitrogen , and hydro- gen . The apparatus constructed for domestic use gives a light equal to from eight to forty candles . There is another point which appears to be important in consider ...
Página 120
... carbon , added to the cyanide of silver , in the decomposing cell , has the property of precipitating the silver perfectly bright , instead of being granulated so dead as it is when thrown down from the solutions ordinarily employed ...
... carbon , added to the cyanide of silver , in the decomposing cell , has the property of precipitating the silver perfectly bright , instead of being granulated so dead as it is when thrown down from the solutions ordinarily employed ...
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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.