Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 304
deviated on account ofthe change of density and elasticity of the ether whichthey then encounter, and the intromitted waves will beunequally deviated, because of their difference of wavelength; these waves will, hence, separate from each otherand proceed in different directions; and, if intercepted… … illustration; cal prism. Let abeam S S\ of solarlio-hLbe admitted in-to a dark roomthrough a small holeiii a window shutter,and received upon ascreen X Y\ it willexhibit a round lu-minous spot at T, in the direction of SS produced; but if the face of a re-fracting prism A B C, be interposed, the…
Mechanics · Acoustics · Optics
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