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 81
... flask stands upon a shelf in front of the heliostat , and FIG . 23 . just beneath it on the floor is placed a tub or a water - pail . These few things and some pieces of colored glass will enable us to perform a most inter- esting and ...
... flask stands upon a shelf in front of the heliostat , and FIG . 23 . just beneath it on the floor is placed a tub or a water - pail . These few things and some pieces of colored glass will enable us to perform a most inter- esting and ...
Página 82
... flask and fill it with water . Place the flask on the shelf so that the beam of light from the heliostat will strike the glass opposite the hole in the side . Look at the beautiful cone of light in the water . The beam of light is ...
... flask and fill it with water . Place the flask on the shelf so that the beam of light from the heliostat will strike the glass opposite the hole in the side . Look at the beautiful cone of light in the water . The beam of light is ...
Página 83
... flask makes a lens , and the falling stream of water is lighted up by the cone of light that enters it at the hole in the flask . Both the water and the light pass out of the hole to- gether , the light inside of the water . That this ...
... flask makes a lens , and the falling stream of water is lighted up by the cone of light that enters it at the hole in the flask . Both the water and the light pass out of the hole to- gether , the light inside of the water . That this ...
Página 91
... exhibited upon a large scale , with very little trouble , and at only the ex- pense of the flask , the pocket - lens , the screen , and the heliostat . CHAPTER V. THE DECOMPOSITION OF LIGHT . CUT a vertical. REFRACTION OF LIGHT . 91.
... exhibited upon a large scale , with very little trouble , and at only the ex- pense of the flask , the pocket - lens , the screen , and the heliostat . CHAPTER V. THE DECOMPOSITION OF LIGHT . CUT a vertical. REFRACTION OF LIGHT . 91.
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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