On the Physical Basis of Animal Phosphorescence
On the Physical Basis of Animal Phosphorescence
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In our eReader you can find the full English version of the book. Read On the Physical Basis of Animal Phosphorescence Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book On the Physical Basis of Animal Phosphorescence
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"When the wave-length is greater than 812 millionths of a millimeter no luniinous effect is produced on the eye, though the effect on the thermometer may be very great. When the wave-length is 650 millionths of a millimeter the ray is visible as a red light, and a considerable heating effect is observed.
But when the wave-length is 500 millionths of a millimeter, the ray, which is seen as a brilliant green, has much less heating effect than the dark or the red rays, and it is difficult to obtai...n strong thermal effects with rays of smaller wave-lengths, even when concentrated." ^ The light and heat are so very different to us because we perceive them with different organs of sense. The heat radia- tion, or the waves of ether which have most heating effect^ we perceive with the organ of temperature sense, while a similar radiation, with different wave-lengths, which have most lumi- notis effect^ we perceive with the organ of sight.
The difference between heat and light, therefore, " is purely subjective, depending on our organization and not on the nature of external objects." ^ There is an absolute continuity in the nature of external disturbances which create in us the sensa- tions of heat and of light, the difference between them being that of degree and not of kind.
What to read after On the Physical Basis of Animal Phosphorescence?
You can find similar books in the "Read Also" column, or choose other free books by Shôzaburô Watasé to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
"When the wave-length is greater than 812 millionths of a millimeter no luniinous effect is produced on the eye, though the effect on the thermometer may be very great. When the wave-length is 650 millionths of a millimeter the ray is visible as a red light, and a considerable heating effect is observed.
But when the wave-length is 500 millionths of a millimeter, the ray, which is seen as a brilliant green, has much less heating effect than the dark or the red rays, and it is difficult to obtai...n strong thermal effects with rays of smaller wave-lengths, even when concentrated." ^ The light and heat are so very different to us because we perceive them with different organs of sense. The heat radia- tion, or the waves of ether which have most heating effect^ we perceive with the organ of temperature sense, while a similar radiation, with different wave-lengths, which have most lumi- notis effect^ we perceive with the organ of sight.
The difference between heat and light, therefore, " is purely subjective, depending on our organization and not on the nature of external objects." ^ There is an absolute continuity in the nature of external disturbances which create in us the sensa- tions of heat and of light, the difference between them being that of degree and not of kind.
What to read after On the Physical Basis of Animal Phosphorescence?
You can find similar books in the "Read Also" column, or choose other free books by Shôzaburô Watasé to read onlineMoreLess
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