 | 1834 - 578 pages
...important discovery of Willebrord Snell, that when a ray of light passes from one medium to another, the sine of the angle of incidence bears a constant ratio to the sine of the angle of the refraction, enabled Cassini to construct tables on a more scientific principle than had hitherto... | |
 | Physics - 1834 - 574 pages
...important discovery of Willebrord Snell, that when a ray of light passes from one medium to another, the sine of the angle of incidence bears a constant ratio to the sine of the angle of the refraction, enabled Cassini to construct tables on a more scientific principle than had hitherto... | |
 | James Dwight Dana - Crystallography - 1837 - 810 pages
...sine of the angle CED, which is the angle of refraction. This principle may therefore be thus stated : The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. This ratio is termed the index of refraction. In water, the ratio is as 1.336 to 1. 1.336... | |
 | Society for the diffusion of useful knowledge - 1839 - 380 pages
...vessel. Here the change is abrupt, but in the atmospheric refraction it is exceedingly gradual. 113. The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction for the same medium. The angle of incidence is the angle which the incident ray makes with... | |
 | James Dwight Dana - Crystallography - 1844 - 652 pages
...sine of the angle CED, which is the angle of refraction. This principle may therefore be thus stated : The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. This ratio is termed the index of refraction. In water, the ratio is as 1.336 to 1. 1.336... | |
 | Dionysius Lardner - Science - 1846 - 664 pages
...this refraction is also proved to be subject to the same laws as the refraction of luminous rays. Thus the sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction, when the refracting medium is given, and refracting media of different kinds refract these... | |
 | John William Draper - Physics - 1847 - 414 pages
...general law of refraction is as follows : — In each medium the sine of the angle of incidence is in a constant ratio to the sine of the angle of refraction ; the incident, the perpendicular, and the refracted ray are all in the same place, which is always at right... | |
 | James Dwight Dana - Crystallography - 1850 - 800 pages
...sine of the angle CED, which is the angle of refraction. This principle may therefore be thus stated : The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. This ratio is termed the index of refraction. In water, the ratio is as Г335 to 1. Г335... | |
 | 1851 - 716 pages
...themselves : — 1st. The plane of refraction coincides with the plane of incidence. 2d. For the same media, the sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. Suppose in pi. 21, Jig. 25, I to be a ray of light, incident at the same point as, and... | |
 | Johann Georg Heck - Encyclopedias and dictionaries - 1851 - 712 pages
...themselves : — 1st. The plane of refraction coincides with the plane of incidence. 2d. For the same media, the sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. Suppose in pi. 21, fig. 25, / to be a ray of light, incident at the same point as, and... | |
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The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. 
