Light: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light, for the Use of Students of Every AgeD. Appleton, 1877 - 112 páginas |
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Página 38
... . Turn the glass still more , turn off at a right angle , and the beam of light will and there will be a spot of light on the wall at that side of the room . Now bring the carpenter's square 38 LIGHT . CHAPTER III Reflection of Light.
... . Turn the glass still more , turn off at a right angle , and the beam of light will and there will be a spot of light on the wall at that side of the room . Now bring the carpenter's square 38 LIGHT . CHAPTER III Reflection of Light.
Página 44
... wall above the window . This spot of light is a picture of the sun thrown by the mirror upon the wall . Hold the mirror at an oblique angle in the sunbeam , and direct the beam of reflection upon the opposite wall . Now there are ...
... wall above the window . This spot of light is a picture of the sun thrown by the mirror upon the wall . Hold the mirror at an oblique angle in the sunbeam , and direct the beam of reflection upon the opposite wall . Now there are ...
Página 45
... wall at 1. Part of the light goes through the glass to B , and here is another point of incidence , and a new beam of reflection is thrown through the glass to the wall at 2. If you REFLECTION OF LIGHT . 45.
... wall at 1. Part of the light goes through the glass to B , and here is another point of incidence , and a new beam of reflection is thrown through the glass to the wall at 2. If you REFLECTION OF LIGHT . 45.
Página 46
... wall at 2. If you look at the reflections on the wall , you will see that the second spot of light is the brightest . This comes from the quicksilver , for , as this is a better reflector than the glass , it sends out a brighter beam of ...
... wall at 2. If you look at the reflections on the wall , you will see that the second spot of light is the brightest . This comes from the quicksilver , for , as this is a better reflector than the glass , it sends out a brighter beam of ...
Página 47
... wall , and you will see that the first reflection from the glass is bright , and that the sec- ond , from the quicksilver at the back of the glass , is brighter still ; and that the others grow fainter and fainter till all the light is ...
... wall , and you will see that the first reflection from the glass is bright , and that the sec- ond , from the quicksilver at the back of the glass , is brighter still ; and that the others grow fainter and fainter till all the light is ...
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Términos y frases comunes
15.2 centimetres 551 BROADWAY ALEXANDER BAIN ALFRED MARSHALL angle angle of incidence appear beam of light beam of reflection beam of sunlight beautiful black mirror block of wood blue bright candle centi centre CHARLES BARNARD color color-top curious dark room diameter disk distance dotted lines experiment fastened flask focus FRANCIS GALTON give glass gray paper green heliostat hole Illustrations inch 25 millimetres inches 12.7 centimetres lamp lantern light entering light passes look looking-glass M. A. Cloth magic lanterns ments metres mirror mucilage phenomena picture piece plano-convex lens point of incidence postal-card Price Prof Professor rays red square reflected light refraction ring SCIENCE screen shade shadow sheet shine side slide slit smoke spot of light square stars surface things top spin tube University of Erlangen violet wall water-lens window yellow