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 102
... gray , will be found at every trial . Red , green , and violet , may be tinted with other colors in the most charming manner , and hours can be filled with amusement and instruction by ex- perimenting with this color - top and its ever ...
... gray , will be found at every trial . Red , green , and violet , may be tinted with other colors in the most charming manner , and hours can be filled with amusement and instruction by ex- perimenting with this color - top and its ever ...
Página 103
... gray . Cover the violet glass so as to shut out all the light , and then make the top spin , and the two spots of red and green will appear on the screen in the form of a yellow ring . In this manner all the effects exhibited by the ...
... gray . Cover the violet glass so as to shut out all the light , and then make the top spin , and the two spots of red and green will appear on the screen in the form of a yellow ring . In this manner all the effects exhibited by the ...
Página 105
... surface of the lower glass ; and , if all three are in the right places , we shall see only one piece , and that will be white or gray . EXPERIMENTS IN CONTRASTED COLORS . Cut out three pieces of THE DECOMPOSITION OF LIGHT . 105.
... surface of the lower glass ; and , if all three are in the right places , we shall see only one piece , and that will be white or gray . EXPERIMENTS IN CONTRASTED COLORS . Cut out three pieces of THE DECOMPOSITION OF LIGHT . 105.
Página 108
... gray spot in the centre . Black , we know , is the absence of color , and on looking at the black spot the eye is not excited at all , and the blue image appears to have a hole in the middle through which we see the gray paper . If we ...
... gray spot in the centre . Black , we know , is the absence of color , and on looking at the black spot the eye is not excited at all , and the blue image appears to have a hole in the middle through which we see the gray paper . If we ...
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Términos y frases comunes
17.8 centimetres angle of incidence Animals appear beam of light beam of reflection beam of sunlight beautiful black mirror block of wood blue BOND STREET bright candle centi centre CHARLES BARNARD circle cloth color color-top critical angle curious dark room diagram diameter direction disk distance dotted lines experiment falls fastened flask focus give glass gray paper heliostat hold hole Illustrations inch 25 millimetres inches 15.2 centimetres index of refraction lamp lantern light entering light passes look looking-glass magic lanterns metres mirror mucilage phenomena picture piece plano-convex lens point of incidence postal-card rays red square reflected light refraction represents ring screen shade shadow sheet shelf shine side slender beam slide slip slit smoke spot of light square stars straight surface things top spin tube wall water-lens wide window yellow
Pasajes populares
Página 3 - ... recommendation of this handy volume. The illustrations add to its interest and value, and its simplicity, both of design and execution, will commend it to beginners and others seeking information on the subject." From the Philadelphia Press. "It supplies a large number of simple and entertaining experiments on the phenomena of light, that any one can perform with materials that maybe found in any dwelling-house, or that maybe bought for a small sum in any town or city. This actually is philosophy...