The principles of light and color: including among other things the harmonic laws of the universe, the etherio-atomic philosophy of force, chromo chemistry, chromo therapeutics, and the general philosophy of the fine forces, together with numerous discoveries and practical applications .. . f polar-ized rays which vanish from view if we attempt to transmit themat certain angles through an object. Light from incandescentbodies, such as hot iron, etc., is polarized under a certain angle,but flame lights are unpolarized, and as the sunlight is unpolar-ized, Arago concluded that the rays which we
The principles of light and color: including among other things the harmonic laws of the universe, the etherio-atomic philosophy of force, chromo chemistry, chromo therapeutics, and the general philosophy of the fine forces, together with numerous discoveries and practical applications .. . f polar-ized rays which vanish from view if we attempt to transmit themat certain angles through an object. Light from incandescentbodies, such as hot iron, etc., is polarized under a certain angle,but flame lights are unpolarized, and as the sunlight is unpolar-ized, Arago concluded that the rays which we receive must ema-nate principally from the luminous or flame-like gases of thesolar atmosphere which hide the still brighter incandescent sur-face of the sun. All rays reflected at an angle of 530 (530 11) 406 CHROMO-PHILOSOPHY. from water, or 56I0 from glass, or 570 from rock crystal, or 68°from diamond, are polarized. 5. Double Refraction. Light passing through certain sub-stances forms a double image, or is refracted in two quite differ-ent directions, and in different planes. Thus, fig. 177 repre-sents a rhombohedric crystal of Iceland spar, upon which thelight falls obliquely, making a double image of objects seenthrough it. The two lines of light constituting these two images. Fie;. 177. Crystal of Iceland Spar. are sometimes said to be oppositely polarized, but they are doubt-less swept off into the diverging lines of atoms, a part of therays going into one line which they are able to bend accordingto the usual laws of refraction, while the other atomic linesare rigid and cause the light to bend in their own point may be rendered more clear perhaps by means of , which consists of lines of atoms whose spirillae pass aroundthem very diagonally. We will supposethat, by means of light, electricity, orsome other force sweeping in the direc-tion of 1,2, the spirillae of the layers ofatoms in that direction should become soexcited and potent as to draw th
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