 | Industrial arts - 1836 - 702 pages
...us. I need not go into explanation of the manner of doing it. The Committee will remember that, as the angle of reflection is always equal to the angle of incidence, we may throw the light in whatever direction we please; by this means we may turn it round a corner... | |
 | Richard Green Parker - Physics - 1838 - 266 pages
...reflects an entire image of the luminary ; bat as the image can be seen only by reflected rays, and the angle of reflection is always equal to the angle of incidence, the image can be seen only in that spot where these angles meet. 546. Objects seen by moonlight appear... | |
 | John White Webster - Chemistry - 1839 - 592 pages
...obliquely the light falls upon the surface, the greater in general is the reflected portion. In these cases the angle of reflection is always equal to the angle of incidence. Let aa represent pencils of light falling upon the surface of a polished piece of glass B, the perpendicular... | |
 | Industrial arts - 1841 - 554 pages
...desire. The reflecting surfaces are constructed in conformity with one of the laws of optics, which is, that the angle of reflection is always equal to the angle of incidence. This will be perceived, on reference to the above diagram, where the strong lines drawn from the centre... | |
 | Perry Fairfax Nursey - Industrial arts - 1841 - 508 pages
...desire. The reflecting surfaces are constructed in conformity with one of the laws of optics, which is, that the angle of reflection is always equal to the angle of incidence. This will be perceived, on reference to the above diagram, where the strong lines drawn from the centre... | |
 | William Mackenzie - Eye - 1841 - 326 pages
...straight lines. 2. That falling upon certain surfaces, light is reflected from them ; and, in those cases, the angle of reflection is always equal to the angle of incidence. 4. That light consists of differently coloured rays, possessing different degrees of refrangibility.... | |
 | Jeremiah Joyce - Science - 1841 - 578 pages
...sent it. 71. This will lead us to the explanation of one of the principal definitions in optics, viz. that the angle of reflection is always equal to the angle of ineidtttct You know what an angle is 1* * See Conver. I. of Mechanics. C. We do : but not what an angle... | |
 | John M. Moffat, Walter Rogers Johnson - Physics - 1842 - 498 pages
...reflection of perfectly elastic solids. Hence the sonorous vibrations being propagated in right lines, the angle of reflection is always equal to the angle of incidence. Thus suppose a sound to.be emitted from A in the annexed figure, and to impinge on a dense plane, EB... | |
 | Charles Alfred Lee - Human physiology - 1843 - 346 pages
...transmission of sound. Sound is also reflected like light, and indeed is subject to the same laws, for the angle of reflection is always equal to the angle of incidence. Reflected sound is termed an echo. The rolling of thunder is supposed to depend partly on the sound... | |
 | Richard Green Parker - 1844 - 276 pages
...reflect* an entire image of the lomiuary ; but as the image can be seen only by reflected rays, and the angle of reflection is always equal to the angle of incidence, the image can be seen only in that spot where these angles meet. 546. Objects seen by moonlight appear... | |
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... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged. 
