 | William Nicholson - 1809 - 716 σελίδες
...come parallel to the glas*. Of Reflection. When a ray of light (alls upon any body, it is reflected, so that the angle of incidence is equal to the angle of reflection ; and this is the fundamental fact upon which all the properties of mirrors depend. This has been attempted... | |
 | Edward Augustus Kendall - 1811 - 458 σελίδες
...denotes the direction in which one hody strikes on another. See MECHANICS and OPTICS. It is demonstrated that the angle of incidence is equal to the angle of reflection, and that they both lie in the same plane. INCLINED plane. (See MECHANICS. INDEPENDENTS, a sect of Protestant... | |
 | Edward Augustus Kendall - 1811 - 516 σελίδες
...denotes the direction in which one body strikes on another. See MECHANICS and OPTICS. It is demonstrated that the angle of incidence is equal to the angle of reflection, and that they both lie in the same plane. INCLINED plane. See MECHANICS. INDEPENDENTS, a sect of Protestant... | |
 | Edward T W. Polehampton - 1815 - 688 σελίδες
...plain mirror should be placed to carry the sun's rays by reflection to a, given point, he demonstrates that the angle of Incidence is equal to the angle of reflection; and having shewn that, in so just a position of the ijlass, the sun's rays might be reflected to the given... | |
 | William Nicholson - 1819 - 394 σελίδες
...denotes the direction in which »ne body strikes on another. See MECRANICS and OPTICS. It is demonstrated that the angle of incidence is equal to the angle of reflection, and that they both lie in the same plane. That the sines of the angles nf incidence and refraction are... | |
 | Alexander Jamieson - 1829 - 654 σελίδες
...rendered much more visible. OfReßection. — When a ray of light falls upon any body, it is reflected so that the angle of incidence is equal to the angle of reflection ; and this is the fundamental fact upon which all the properties of mirrors depend. Let a ray of light, passing... | |
 | Alexander Crombie - 1829 - 652 σελίδες
...example, he observes, it is " a principle of reasoning," from which important deductions are drawn, that the angle of incidence is equal to the angle of reflection ; and in mathematics, the axioms ; in physics, a belief in the continuance of the laws of nature ; and in... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1832 - 650 σελίδες
...thin™ are seen by light reflected from bodies. When a ray of light falls upon any body, it is reflected so that the angle of incidence is equal to the angle of reflection ; and this is the fundamental fact upon which all the properties of mirrors depend. Lei a ray of light, passing... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 620 σελίδες
...things are seen by light reflected from bodies. When a ray of light falls upon any body, it is reflected so that the angle of incidence is equal to the angle of reflection ; and this is the fundamental fact upon which all the properties of mirrors depend. Let a ray of light, passing... | |
 | 1836 - 784 σελίδες
...plain mirror should be placed to carry the sun's rays by reflection to a given point, he demonstrates that the angle of incidence is equal to the angle of reflection ; and having shown that in so just a position of the glass the sun's rays might be reflected to the given... | |
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Greeks found that the angle of incidence is equal to the angle of reflection; and their knowledge reached no further than to such simple deductions from this as their geometry sufficed for. 
