...of the light parallel to that surface. Thus U Sifl ¿ = U Sin and sin ¿ sin ¿ U that is, in words, the ratio of the sine of incidence to the sine of refraction is equal to the ratio of the velocity of the F- — — 284 Mr. Ivory on the Theory ofthe AstronomicaiR,J,t¿MI¿...

...region, while the vertical component increases. It is shown that, for an arbitrary angle of incidence, the ratio of the sine of incidence to the sine of refraction is constant. fraction and the path of the moving particle in his imaginary mathematical model. It should...

...of the angles of the prism brought a difference of only 0.00026 (twenty-six hundred-thousandths) in the ratio of the sine of incidence to the sine of refraction, and that a similar error in the observation of the angles of the broken ray in the same element a difference...

...passes P through transparent 7"noncrystalline C medium x. The consequent of the conditional states that the ratio of the sine of incidence to the sine of refraction of j through x is constant. & (3ç)(7ç & Q & Pysflx If the complex antecedent is abbreviated F, and...

...time. 9. Find the precession ia north polar distance. 10. If a small pencil of parallel homogeneal rays be refracted into a sphere, and the ratio of...that they may emerge parallel after any given number '.if reflections within the sphere. AN ALPHABETICAL LIST OF THE fttembm of *s* The Members of the Senate...

...following articles we shall always consider the radii of convex surfaces as positive. We shall denote by n the ratio of the sine of incidence to the sine of refraction out of air into glass for mean rays, and by 8n the variation of this ratio arising from unequal refrangibility....

...constantly full. 7. Having given the radius of an arc of any colour in the secondary rainbow, find the ratio of the sine of incidence to the sine of refraction when rays of that colour pass out of air into water. 8. If a body revolve in an ellipse (whose major...