 | Thomas Keith - 1826 - 360 ページ
...which is not affected by refraction. M It has long been established, by experiment, that a ray oflight passing from a rarer to a denser medium, is refracted towards the denser medium. Thus, if ABC he the boundary between two media, of which the lower one is the denser,... | |
 | James Dwight Dana - 1837 - 810 ページ
...within the water, is nearer the perpendicular BC, than if it had proceeded in its original direction AE. If we consider the ray as passing from the water into...if from a denser to a rarer, it is refracted FROM a perpendicular. It has been proved by experiment, that at whatever angle we look at the surface of... | |
 | Richard Green Parker - 1838 - 266 ページ
...the other, as E, Fig. 105. 613. It will be remembered that, according to the laws stated in No. 593, light, in passing from a rarer to a denser medium, is refracted towards the perpendicular; and, on the contrary, that in passing from a denser to a rarer medium, that it is refracted further... | |
 | Richard Green Parker - 1844 - 276 ページ
...stated in Ab. 593.) 613. It will be remembered that, according to the laws stated in No. 593, hght, in passing from a rarer to a denser medium, is refracted towards the perpendicular; and, on the contrary, that in passing from a denser to a rarer medium, that it is refracted further... | |
 | Thomas Keith - 1848 - 486 ページ
...which is not affected by refraction. It has long been established, by experiment, that a ray of light passing from a rarer to a denser medium, is refracted towards the denser medium. Thus, if ABC be the boundary between two media, of which the lower one is the denser,... | |
 | Richard Green Parker - 1849 - 418 ページ
...Ill, represents the axis of ail the five lenses? It will be remembered that, according to these laws, light, in passing from a rarer to a denser medium is refracted towards the perpendicular ; and, on the contrary, that in passing from a denser to a rarer medium, it is refracted further from... | |
 | Richard Green Parker - 1850 - 408 ページ
...Ill, represents the axis of all the five lenses? It will be remembered that, according to these laws, light, in passing from a rarer to a denser medium is refracted towards the perpendicular; and, on the contrary, that in passing from a denser to a rarer medium, it is refracted further from... | |
 | Charles Upham Shepard - 1852 - 268 ページ
...law in respect to this change of media in light, that in passing from a rarer to a denser medium, it is refracted towards the perpendicular ; if from a...to a rarer, it is refracted from the perpendicular. This simple refraction is common to all transparent bodies, differing however in each case ;* but the... | |
 | James Dwight Dana - 1854 - 858 ページ
...all transparent bodies, whether solid, liquid, or gaseous. The part of the ray AED, within the 248 water, is nearer the perpendicular BC, than if it...to a rarer, it is refracted FROM the perpendicular. same distance, A and D, from E. That is, if AB is twice the length of CD, viewing it at one angle,... | |
 | James Dwight Dana - 1854 - 864 ページ
...water into the air, the part AE, is farther from the same perpendicular than if it had proceeded in die original direction DE. We have therefore this important...the perpendicular ; if from, a denser to a rarer, ^t is refracted FROM the perpendicular. PHYSICAL PROPERTIES OF MINERALS. same distance, A and D, from... | |
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AE, is farther from the same perpendicular than if it had proceeded in the original direction DE. We have therefore this important principle : Light, in passing from a rarer to a denser medium, is refracted TOWARDS the perpendicular ; if from a denser... 
