 John thence concludes — 1st. That it is the heat of these rays, not their light, which operates the change ; 2ndly. That this heat possesses a peculiar chemical quality which is not possessed by the purely calorific rays outside of the visible spectrum,...  On the Connection of the Physical Sciences - Page 231by Mary Somerville - 1846 - 460 pagesFull view - About this book
 | Royal Society (Great Britain) - 1842 - 422 pages
...possessed by the purely calorific rays outside of the visible spectrum though far more intense; and, 3rdly, that the heat radiated from obscurely hot iron, abounds...those of the region of the spectrum above indicated. And there are the very same conclusions derived from the experiments on guaiacum in Art. 158—160.... | |
 | 1906 - 714 pages
...by the purely calorific rays outside of the visible s|>ectrum. though far more Intense; and. third, that the heat radiated from obscurely hot Iron abounds...those of the region of the spectrum above indicated. Sir John Herschcl then proceeds to show that, whatever be the state of the iron in the double salts... | |
 | 1906 - 854 pages
...though far more intense ; and, third, that the heat radiated from obscurely hot iron abounds esi>ecially in rays analogous to those of the region of the spectrum above indicated. Sir John Herschel then proceeds to show that, whatever be the state of the iron in the double salts... | |
 | Smithsonian Institution. Board of Regents - 1906 - 734 pages
...by the purely calorific rays outside of the visible spectrum, though far more intense ; and, third, that the heat radiated from obscurely hot iron abounds...especially in rays analogous to those of the region of the siiectnim above indicated. Sir John Herschel then proceeds to show that, whatever be the state of the... | |
 | Smithsonian Institution. Board of Regents - 1906 - 702 pages
...by the purely calorific rays outside of the visible spectrum, though far more intense ; and, third, that the heat radiated from obscurely hot iron abounds...those of the region of the spectrum above indicated. Sir John Herschel then proceeds to show that, whatever be the state of the iron in the double salts... | |
 | 510 pages
...by the purely calorific rays outside of the visible spectrum, though far more intense ; and, 3rdly, that the heat radiated from obscurely hot iron, abounds...those of the region of the spectrum above indicated. And there aje the very same conclusions derived from the experiments on guaiacum in Art. 158 — 160.... | |
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