rays, and it has a proportionately high power of absorption for that kind of light ; but for it alone. And we see that every substance which emits at a given temperature certain kinds of light must possess the power, at that same temperature, of absorbing... Student's Class Book of Astronomy - Page 213by Francis Bullock - 1873 - 224 pagesFull view - About this book
| National Sunday school union - 1871 - 598 pages
...of modern times can equal it. The law is thus expressed : " Every substance which emits at a yiven temperature certain kinds of light must possess the...temperature of absorbing the same kinds of light." Kirchoff continued his investigations on other metals; such as the metallic bases of lime, magnesia,... | |
| Robert Galloway - 1864 - 808 pages
...whilst the same substance has also the power of absorbing ravs of this identical refrangibility, so that every substance which emits, at a given temperature, certain kinds of light, possesses the power, at the same temperature, of absorbing the same kind of light. The following experiment... | |
| Henry E. Roscoe - 1869 - 372 pages
...has a proportionately high power of absorption for that kind of light ; but for it alone. And we see that every substance which emits at a given temperature...that same temperature, of absorbing the same kinds of light.1 We must remember, however, that the emissive and absorptive powers of substances can only be... | |
| Henry Enfield Roscoe - 1870 - 514 pages
...has a proportionately high power of absorption for that kind of light ; but for it alone. And we see that every substance which emits at a given temperature...that same temperature, of absorbing the same kinds of light.1 We must remember, however, that the emissive and absorptive powers of substances can only be... | |
| sir Henry Enfield Roscoe - 1869 - 396 pages
...has a proportionately high power of absorption for that kind of light ; but for it alone. And we see that every substance which emits at a given temperature...that same temperature, of absorbing the same kinds of light.1 We must remember, however, that the emissive and absorptive powers of substances can only be... | |
| Henry Allon - 1869 - 644 pages
...proportionately high power of absorption for that kind of light ; but for it alone. And we see that evensubstance which emits at a given temperature certain kinds of...temperature of absorbing the same kinds of light. Now, we know that the same kind of law holds good with the other vibrations known to us — the vibrations... | |
| 1870 - 578 pages
...corresponding to the darkest solar ones. From these facts is deduced the law or "theory of exchanges." Every substance which emits at a given temperature certain kinds of light, possesses the power at that same temperature of absorbing from another luminous body the same kinds... | |
| 1870 - 588 pages
...corresponding to the darkest solar ones. From these facts is deduced the law or "theory of exchanges." Every substance which emits at a given temperature certain kinds of light, possesses the power at that same temperature of absorbing from another luminous body the same kinds... | |
| Richard Anthony Proctor - 1871 - 550 pages
...of the fact is founded on the existence of a law which is thus worded by Professor Roscoe — •' Every substance which emits at a given temperature...temperature of absorbing the same kinds of light.' * * This is merely a corollary from a more general law, according to which the same relation holds... | |
| Henry Enfield Roscoe - 1873 - 542 pages
...has a proportionately high power of absorption for that kind of light; but for it alone. And we see that every substance which emits at a given temperature...temperature, of absorbing the same kinds of light. 1 We must remember, however, that the emissive and absorptive powers of substances can only be compared... | |
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