 | Peter Mark Roget - 1832 - 324 pages
...flame of a candle : some of the more refractory substances, as quartz, the sapphire, magnesia, and lime, all entered into fusion : fragments of diamond, and points of charcoal and of plumbago quickly disappeared, and seemed converted into vapour, even when the connection was made... | |
 | Luke Hebert - 1835 - 816 pages
...back the points a little from each other, a constant discharge took place through the heated air, in a space equal at least to four inches, producing a...connexion was made in a receiver exhausted by the air pump ; but there was no evidence of their having previously undergone fusion. Copper and zinc are... | |
 | Luke Hebert - 1836 - 814 pages
...back the points a little from each other, a constant discharge took place through the heated air, in a space equal at least to four inches, producing a...connexion was made in a receiver exhausted by the air pump ; but there was no evidence of their having previously undergone fusion. Copper and zinc are... | |
 | John Towers (C.M.H.S.) - 1839 - 746 pages
...opposite poles of the two wires,) "it became instantly ignited; platinum melted as readily in it as wax in the flame of a common candle; quartz, the sapphire,...plumbago rapidly disappeared, and seemed to evaporate iu it, even when the connexion was made in a receiver, exhausted by the air-pump: but there was no... | |
 | Encyclopaedia - 1845 - 876 pages
...arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a com- ' mon candle ; quartz, the sapphire, magnesia, lime, all...disappeared, and seemed to evaporate in it, even when the connection was made in a receiver exhausted by the air pump ; but there was no evidence of their having... | |
 | Luke Hebert - 1849 - 850 pages
...space equal at least to four inches, producing a most brilliant ascending arch of light, expanded und conical in the middle. When any substance was introduced...connexion was made in a receiver exhausted by the air pump ; but there was no evidence of their having previously undergone fusion. Copper and zinc are... | |
 | 1870 - 668 pages
...substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle; quartz, the sapphire,...disappeared, and seemed to evaporate in it, even when the connection was made in a receiver exhausted by the airpump; but there was noevidenceof their having... | |
 | John Tyndall - 1870 - 56 pages
...substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle ; quartz, the sapphire, magnesia, 141. Dr. Werner Siemens was the first to employ (in 1847) guttapercha as a means of insulating subterranean... | |
 | John Tyndall - 1871 - 216 pages
...substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle ; quartz, the...charcoal and plumbago, rapidly disappeared, and seemed to evnpo141. Dr. Werner Siemens was the first to employ (in 1847) gutta-percha as a means of insulating... | |
 | JOHN TYNDALL, L.L.D., F.R.S. - 1871 - 204 pages
...substance was introduced into this arch, it instantly became ignited; platina melted as readily m it as wax in the flame of a common candle; quartz, the sapphire,...charcoal and plumbago, rapidly disappeared, and seemed to evapo141. Dr. Werner Siemens was the first to employ (in 1847) gutta-percha as a means of insulating... | |
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When any substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle ; quartz, the sapphire, magnesia, lime, all entered into fusion... 
