 | British Association for the Advancement of Science - 1835 - عدد الصفحات: 766
...difference of the squares of the velocities of the ordinary and extraordinary rays within the crystal, is proportional to the product of the sines of the angles which the latter makes with the resultant axes. M. Biot was led to the discovery of this beautiful law by... | |
 | British Association for the Advancement of Science - 1835 - عدد الصفحات: 806
...difference of the squares of the velocities of the ordinary and extraordinary rays within the crystal, is proportional to the product of the sines of the angles which the latter makes with the resultant axes. M. Biot was led to the discovery of this beautiful law by... | |
 | Cambridge Philosophical Society - 1838 - عدد الصفحات: 618
...squares of the reciprocals of the velocities of the two rays having a common direction in the crystal, is proportional to the product of the sines of the angles which that direction makes with the optic axes." Mr Airy gives the following: " The difference between the... | |
 | James David Forbes - 1856 - عدد الصفحات: 218
...expressed the law more elegantly by saying, that the tint developed by a biaxal crystal in any ray, is proportional to the product of the sines of the angles which the ray in question makes with the two optic axes. The tints arc consequently arranged round the two... | |
 | Humphrey Lloyd - 1857 - عدد الصفحات: 256
...between the reciprocals of the squares of the velocities, with which the two rays traverse the crystal, is proportional to the product of the sines of the angles which their direction makes with the optic axes ; or, that if v and v denote the velocities of the two rays, w... | |
 | Humphrey Lloyd - 1857 - عدد الصفحات: 260
...nearly constant ; we have, therefore, t - t' = const x 6 sin o> sin a/ ; or, the interval of retardation is proportional to the product of the sines of the angles which the direction of the rays makes with the two axes, and to the thickness of the crystal traversed, jointly.... | |
 | Percival Frost - 1875 - عدد الصفحات: 458
...(a« 4 c') - 36'}*. (12) Prove that the difference of the squares of the axes of a central section is proportional to the product of the sines of the angles which it makes with the planes of circular section. (13) Shew that if elliptic paraboloids have one of their... | |
 | Alfred Barnard Basset - 1892 - عدد الصفحات: 466
...axes. 107. The difference between the squares of the velocities corresponding to the same wave-front, is proportional to the product of the sines of the angles, which the normal to ilie wave-front makes with the optic axes. Let OP, OP" be the optic axes ; 0, ff the... | |
 | 1893 - عدد الصفحات: 760
...axes of any central plane section of an ellipsoid. Shew that the difference of the squares of the axes is proportional to the product of the sines of the angles which the plane makes with the circular sections. 10. Prove that a hyperboloid of one sheet possesses two... | |
 | University of Sydney - 1903 - عدد الصفحات: 662
...plane section of an ellipsoid. Shew that the difference of the reciprocals of the squares of the axes is proportional to the product of the sines of the angles which the plane makes with its circular sections. 7. Prove that a hyperboloid of one sheet possesses two... | |
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... a consequence of the rule that the difference of the squares of the velocities of the ordinary and extraordinary rays within the crystal, is proportional to the product of the sines of the angles which the latter makes with the resultant axes. M.... 
