 | Thomas Taylor - 1812 - 628 pages
...and at noon are direct ; but in winter and the morning they are oblique. But it is demonstrated that the angle of incidence is always equal to the angle of reflection. Reflections however at right angles, more compress the air, and on this account the air is more heated... | |
 | Charles Hutton - 1815 - 686 pages
...вг. General Laws of REFLECTION. — 1. When a ray of light is reflected from a speculum of any form, the angle of incidence is always equal to the angle of reflection. This law obtains in the percussions of all kinds of bodies ; and consequently must do so in those of... | |
 | 1816 - 844 pages
...oppofite furftcf. When a perpendicular is drawn to the reflecting furface, at the point of incidence, the angle of incidence is always equal -to the angle of reflection, It has been demonftrated that reflected rays do mt come in contact with the reflecting furface; but... | |
 | Bartholomew Prescot - 1822 - 292 pages
...of optics, by the important discovery they made, that light emits itself in straight lines, and that the angle of incidence is always equal to the angle of reflection. Plato also seems to have apprehended the Newtonian system of colours, for he calls them the effect... | |
 | William Hone - 1827 - 892 pages
...of optics, by the important discovery they made, that light emits itself in straight lines, and that the angle of incidence is always equal to the angle of reflection. Plato terms colours " the effect of light transmitted from bodies, the small particles of which were... | |
 | Andrew Fyfe - 1827 - 1076 pages
...it strikes the plate, is called the angle of Incidence ,• EDA, is the angle of reflection ; hence the angle of incidence is always equal to the angle of reflection. If the plate be not flat, the reflected rays are either dispersed or concentrated. Thus, if they strike... | |
 | Neil Arnott - 1827 - 692 pages
...equal degree of obliquity on the other side. To express this very important law shortly, we say that " the angle of incidence is always equal to the angle of reflection." — According to this law, any irregular surface must break an echo ; and if the irregularity be very... | |
 | William Hone - 1828 - 468 pages
...of optics, by the important discovery they made, that light emits itself in straight lines, and that the angle of incidence is always equal to the angle of reflection. Plato terms colours " the effect of light transmitted from bodies, the small particles of which were... | |
 | George Crabb - 1831 - 426 pages
...mirror. REFLECTION, ANGLE OF. the law ol reflection is generally expressed by the assertidn, that " the angle of incidence is always equal to the angle of reflection," and is thus explained: If in the accompanying figure AB be a plane surface, and a ball at D be impelled... | |
 | William Martin - 1832 - 504 pages
...body, it i is reflected, and the law which rays of light uniformly observe in their reflection is, that the angle of incidence is always equal to the angle of reflection ; upon this fundamental principle all the properties of mirrors depend. Extwijile. Let a AB be a reflecting... | |
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The disciples of Plato contributed not a little to the advancement of optics, by the important discovery they made, that light emits itself in straight lines, and that the angle of incidence is always equal to the angle of reflection. Plato terms colours... 
