 | Parker Cleaveland - Geology - 1816 - 702 pages
...on the imbibition of water, and will be more fully explained. 5. Refraction. 102. It is well known, that, when a ray of light passes obliquely from one medium to another of different density, it is refracted, or bent from its original direction. Still the image of any object, seen through a refracting... | |
 | Parker Cleaveland - Geology - 1822 - 886 pages
...on the imbibition of water, and will be more fully explained. 5. Refraction. 119. It is well known, that, when a ray of light passes obliquely from one medium to another of different density, it is refracted, or bent from its original direction. Still the image of any object, seen through a refracting... | |
 | John Lee Comstock - Mineralogy - 1832 - 364 pages
...of the other arm will cut the degree on the graduated scale. , DOUBLE REFRACTION. It is well known that when a ray of light passes obliquely from one medium to another of a different density, it is refracted, or bent out of its original direction. Experiment shows that... | |
 | John Lee Comstock - Mineralogy - 1832 - 362 pages
...side of the other arm will cut the degree on the graduated scale. DOUBLE REFRACTION. It is well known that when a ray of light passes obliquely from one medium to another of a different density, it is refracted, or bent out of its original direction. Experiment shows that... | |
 | John Gummere - Astronomy - 1837 - 506 pages
...this action is called Astronomical Refraction, or simply Refraction. OF REFRACTION. 8. It is known that when a ray of light passes obliquely from one medium to another of different density, its direction is changed. Let FHGB, Fig. 2, be a vertical section of a vessel whose sides are opaque.... | |
 | John Johnston - Physics - 1846 - 314 pages
...from the perpendicular BA, and take the direction BC. When the ray Quest. 360. What will be the effect when a ray of light passes obliquely from one medium to another of different density ? Will the ray be refracted when it passes perpendicularly from one medium to the other ? When the... | |
 | John Johnston - Chemistry - 1850 - 396 pages
...same course, though not precisely the same path, as it had at first. • Refraction always takes place when a ray of light passes obliquely from one medium to another of different density, but not always to the same amount; this will depend upon the refracting power of the two media, and... | |
 | Alonzo Gray - Physics - 1850 - 422 pages
...be remedied ? What are caustic curves 1 /\ SECTION HI.— DIOPTRICS, OR REFRACTION OF LIGHT. 1. When light passes obliquely from one medium to another of different density, it is refracted. \. If a ray of light pass from a rarer into a denser medium, it is bent toward a perpendicular... | |
 | Louis Agassiz - Zoology - 1852 - 278 pages
...transparent, like that of the chambers, but somewhat more dense. This is called the vitreous humor, (A.) 77. The object of this apparatus is to receive the...be illustrated by the following figure, (Fig. 14.) A/ E' Fig. 14. The ray ac, which strikes the cornea AB perpendicularly, continues without deviation,... | |
 | John Johnston - Physics - 1854 - 420 pages
...instead f continuing a straight course to D, will be bent downQtiESTioN 360. What will be the effect when a ray of light passes obliquely from one medium to another of different density ? Will the ray be refracted when it passes perpendicularly from one medium to the other ? When the... | |
| |
The portion of the globe behind the lens, which is much the largest, is filled by a gelatinous liquid, perfectly transparent, like that of the chambers, but somewhat more dense. This is called the vitreous humor, (h.) 77. The object of this apparatus... 
