Light
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In our eReader you can find the full English version of the book. Read Light 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 Light
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They are due to Diffraction, and can be explained only by the help of the undulatory theory.
1 Mercurius in Sole visus. Gedani, 1662. The passage is quoted in full by Huygens in his treatise De Coronis et Parheliis, Leyden, 1703. 2 Journal de Vcole Poly technique, xviii. 1847.
CHAPTER XI REFRACTION IN A NON-HOMOGENEOUS MEDIUM 181. THE principles already explained are sufficient for the purpose of treating this question also. But they require for their application the artifice of supposing the m...edium to be made up of layers, in which the refractive index is the same throughout each layer, but finitely differs from one layer to another ; and then supposing these layers to become infinitely thin and infinitely numerous. In this case there will, of course, be only an infinitely small difference in properties between contiguous layers; and the abrupt changes of direction which accompany ordinary refraction are now replaced by a continuous curvature of the path of the ray. This artifice is successful, but not elegant.
What to read after Light?
You can find similar books in the "Read Also" column, or choose other free books by Peter Guthrie Tait to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
They are due to Diffraction, and can be explained only by the help of the undulatory theory.
1 Mercurius in Sole visus. Gedani, 1662. The passage is quoted in full by Huygens in his treatise De Coronis et Parheliis, Leyden, 1703. 2 Journal de Vcole Poly technique, xviii. 1847.
CHAPTER XI REFRACTION IN A NON-HOMOGENEOUS MEDIUM 181. THE principles already explained are sufficient for the purpose of treating this question also. But they require for their application the artifice of supposing the m...edium to be made up of layers, in which the refractive index is the same throughout each layer, but finitely differs from one layer to another ; and then supposing these layers to become infinitely thin and infinitely numerous. In this case there will, of course, be only an infinitely small difference in properties between contiguous layers; and the abrupt changes of direction which accompany ordinary refraction are now replaced by a continuous curvature of the path of the ray. This artifice is successful, but not elegant.
What to read after Light?
You can find similar books in the "Read Also" column, or choose other free books by Peter Guthrie Tait to read onlineMoreLess
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