On increasing the pressure to two atmospheres, the previously feeble luminosity is very markedly augmented, whilst at ten atmospheres' pressure, the light emitted by a jet about one inch long is amply sufficient to enable the observer to read a newspaper... The American Journal of Science and Arts - Page 3921868Full view - About this book
| 1868 - 472 pages
...0 = 8 0 48 -1 loga= 0-410460 logfL= 2984317 p = 869"-640 SCIENTIFIC INTELLIGENCE. I. CHEMISTRY ANP PHYSICS. 1. On the combustion of hydrogen and carbonic...than the hydrogen flame under the same pressure. When ournt in oxj gen under a pressure of fourteen atmospheres the spectrum of the flame is very brilliant... | |
| 1868 - 346 pages
...augmented, whilst at ten atmospheres' pressure the light emitted by a jet about one inch long was .imply sufficient to enable the observer to read a newspaper at a distance of two feet from the flame, aud this without any reflecting surface behind the flame. Examined by the spectroscope, the spectrum... | |
| James Samuelson, Henry Lawson, William Sweetland Dallas - 1868 - 512 pages
...increased ; but on increasing it to ten atmospheres, the light emitted by a jet an inch long is amply sufficient to enable the observer to read a newspaper at a distance of two feet from the flame, and this without any reflecting surface behind the flame. Seen with the spectroscope the spectrum of... | |
| Royal Society (Great Britain) - 1868 - 662 pages
...augmented, whilst at ten atmospheres' pressure the light emitted by a jet about 1 inch long is amply sufficient to enable the observer to read a newspaper at a distance of 2 feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope,... | |
| Royal Society (Great Britain) - 1868 - 654 pages
...augmented, whilst at ten atmospheres' pressure the light emitted by a jet about 1 inch long is amply sufficient to enable the observer to read a newspaper at a distance of 2 feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope,... | |
| 1868 - 1022 pages
...augmented, whilst at ten atmospheres' pressure the light emitted by a jet about 1 inch long is amply sufficient to enable the observer to read a newspaper at a distance of 2 feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope,... | |
| Royal Institution of Great Britain - 1869 - 636 pages
...augmented, whilst at ten atmospheres' pressure, the light emitted by a jet about one inch long was amply sufficient to enable the observer to read a newspaper at a distance of two feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope, the spectrum... | |
| James Samuelson, William Crookes - 1869 - 700 pages
...augmented, whilst at ten atmospheres' prassure, the light emitted by a jet about one inch long is amply sufficient to enable the observer to read a newspaper at a distance of two feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope, the spectrum... | |
| 1869 - 692 pages
...augmented, whilst at ten atmospheres' pressure, the light emitted by a jet about one inch long is amply sufficient to enable the observer to read a newspaper at a distance of two feet from the flame, and this without any reflecting surface behind the flame. Examined by the spectroscope, the spectrum... | |
| Henry Enfield Roscoe - 1870 - 514 pages
...of ten atmospheres the light emitted by a jet about one inch long is amply sufficient to enable an observer to read a newspaper at a distance of two feet from the flame. Examined by the spectroscope, the spectrum of this flame is bright and perfectly continuous from red... | |
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