. Carnegie Institution of Washington publication. CHAPTER VIII. AN ADJUSTMENT IN RELATION TO THE FRESNEL COEFFICIENT. 64. Apparatus, one internal reflection.—Figure 86 gives an application of the quadratic interferometer for the possible demonstration of ether drag. Here M, Mf, N, N' are the mirrors of the interferometer and L and T the collimator and telescope of this design, the rays passing as shown. In place of the auxiliary mirror to the left of AW, the transparent glass cylinder or disk GG', capable of rotating rapidly around an axis A normal and symmetrical to the ray parallelogram, has
. Carnegie Institution of Washington publication. CHAPTER VIII. AN ADJUSTMENT IN RELATION TO THE FRESNEL COEFFICIENT. 64. Apparatus, one internal reflection.—Figure 86 gives an application of the quadratic interferometer for the possible demonstration of ether drag. Here M, Mf, N, N' are the mirrors of the interferometer and L and T the collimator and telescope of this design, the rays passing as shown. In place of the auxiliary mirror to the left of AW, the transparent glass cylinder or disk GG', capable of rotating rapidly around an axis A normal and symmetrical to the ray parallelogram, has been installed. The mantle of the cylinder is supposed to be carefully ground. If the index of refraction GG' is adequate, the component ray reflected at N' takes the path N'C'CNM and then enters the telescope T after reflection. The ray traversing N', on the contrary, takes the path N'NCC'N'M'M and also enters T to interfere with the preceding ray. In other words, the two rays are refracted in like manner by the cylinder GG', at the angles of incidence and refraction i and r, respectively, where t = 2r, since R is the radius of the f^T~ 87 <* tf^rfj 0 /:<jlT C 1 ScAL f SjlC /^\? €-•*$ \ Wy M^ x^/— ,' ' a, /*&' / &~^/ /. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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