 | George Payn Quackenbos - Physics - 1860 - 468 pages
...visible to a person at R looking directly at it, on account of the interposition of the screen ; but, as the angle of reflection is always equal to the angle of incidence, it can be seen from R by looking at the mirror. 611. IMAGES.—By the Image of an object is meant a... | |
 | Josiah P. Cooke, Jr. - 1860 - 754 pages
...the distance from the source. If the rays of heat fall on a polished surface they are reflected, and the angle of reflection is always equal to the angle of incidence. If they enter a transparent medium they are refracted, and for the same substance the sine of the angle... | |
 | John Pringle Nichol - Physics - 1860 - 942 pages
...point to ааЛа, adopt! tbe shortest pouil/le course — a truth flowing directly from the fact that the angle of reflection is always equal to the angle of incidence. On the discovery of the Law of Refraction by Snell, and its promulgation by Des Cartes, the French... | |
 | George Payn Quackenbos - Physics - 1862 - 468 pages
...visible to a person at B looking directly at it, on account of the interposition of the screen ; but, as the angle of reflection is always equal to the angle of incidence, it can be seen from B by looking at the mirror. 611. IMAGES.—By the Image of an object is meant a... | |
 | Robert William Fraser - 1866 - 346 pages
...at a loss to understand this law of reflection." " You must remember," continued the Doctor, " that the angle of reflection is always equal to the angle of incidence ; that is, if the ray falls from e, then the angle which it makes with the perpendicular from c, in... | |
 | George Frederick Pardon - Billiards - 1866 - 394 pages
...a poor chance against a cool and clear-headed player. The grand principle of Billiards is this — the angle of reflection is always equal to the angle of incidence. Though, at first sight, the sentence may look rather learned and abstruse, it is by no means difficult... | |
 | Mary Ann Dwight - Art - 1866 - 290 pages
...distorted, both in shape and Color. 577. One of the most simple laws, in regard to reflection, is, that the angle of reflection is always equal to the angle of incidence. Reflections are often incowectly represented. Their effect depends upon the height of the horizon-line,... | |
 | William James Rolfe - Physics - 1868 - 328 pages
...which they are moving, they are partially reflected and partially transmitted. In the reflected portion the angle of reflection is always equal to the angle of incidence. The transmitted portion is refracted, either away from or towards a perpendicular to the surface of... | |
 | William James Rolfe, Joseph Anthony Gillet - Physics - 1868 - 554 pages
...which they are moving, they are partially reflected and partially transmitted. In the reflected portion the angle of reflection is always equal to the angle of incidence. The transmitted portion is refracted, either away from or towards a perpendicular to the surface of... | |
 | P. Austin Nuttall - Science - 1869 - 356 pages
...vision, which explains the laws and properties of reflection, chiefly founded upon this truth — that the angle of reflection is always equal to the angle of incidence ; and from thence deducing the magnitude, shapes, and situations of the appearances of objects seen... | |
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... as 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. 
