 | Friedrich Christian Accum - Chemistry - 1808 - 428 pages
...another, it continues to move on, without changing its direction. But the case is different when it passes obliquely from one medium into another of a different density ; it is then bent from its first direction, and assumes a new one ,- it is said to be refracted. When it passes... | |
 | William Thomas Brande - 1821 - 506 pages
...transparent medium into another, it continues to move without changing its direction ; but, when it passes obliquely from one medium into another of a different density, it is thrown more or less out of its old direction, and is said to be refracted. The refraction is towards... | |
 | William Thomas Brande - Chemistry - 1821 - 806 pages
...into another, it continues to move without changing its direction ; but, when it passEffect of Jif- es obliquely from one medium into another of a different density, it is imperil de nil- » * i»i* • _!• •» /• tici in the me- thrown more or less out 01 its old... | |
 | John Hubbard Wilkins - Astronomy - 1822 - 158 pages
...SECT. IV. Of Phenomena arising from the Earth's Atmosphere. 125. It is found by experiment, that when a ray of light passes obliquely from one medium into another of different density, as from air into water, or from water into air, it is bent out of a straight course,... | |
 | Edward Riddle - Nautical astronomy - 1824 - 572 pages
...The correction for dip is therefore subtracting; it may be taken, by inspection, from Table 7. When a ray of light passes obliquely from one medium into another of greater density, it is bent towards the perpendicular at the point at which it enters. This bending... | |
 | John Hubbard Wilkins - Astronomy - 1825 - 151 pages
...SECT. IV. Of Phenomena arising from the Earth's- Atmosphere. 131. It is found by experiment, that when a ray of light passes obliquely from one medium into another of different density, as from air into water,- or from- water into air, it is bent out of a straight course,... | |
 | John Ayrton Paris - Pharmaceutical chemistry - 1825 - 644 pages
...affections of light are foreign to this work, its chemical relations are to be alone considered. : 383. When a ray of light passes obliquely from one medium into another of greater density, it is bent towards the perpendicular ; but if the second medium be of less density,... | |
 | John Hubbard Wilkins - Astronomy - 1829 - 202 pages
...SECT. IV. Of Phenomena arising from the Earth's Atmosphere. 131. It is found by experiment, that when a ray of light passes obliquely from one medium into another of different density, as from air into water, or from water into air, it is bent out of a straight course,... | |
 | John Lee Comstock - Physics - 1841 - 348 pages
...producing the same effect as though the object had been raised upwards, and hence it becomes visible. 649. The transparent body through which the light passes...into another of a different density, it is refracted, ortuined out of its former course." This is illustrated in the above examples, the water being a more... | |
 | John Gummere - Astronomy - 1842 - 516 pages
...earth, the height would then be 5.13 miles. 78. Refraction. The science of optics teaches us, that when a ray of light passes obliquely from one medium into another, of different density, it becomes bent, or refracted; the ray in the second medium, called the refracted... | |
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This is illustrated in the above examples, the water being a more dense medium than air. The refraction takes place at the surface of the medium, and the ray is refracted in its passage out of the refracting substance as well as into it. 
