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 96
... shades , and no others , and then cut out three narrow strips of cardboard , and give one a coat of the red , one a coat of violet , and paint the other green . Take pains to give them a good thick coat , so as to hide the white paper ...
... shades , and no others , and then cut out three narrow strips of cardboard , and give one a coat of the red , one a coat of violet , and paint the other green . Take pains to give them a good thick coat , so as to hide the white paper ...
Página 97
... shades of yellow , from deep - orange to yellowish - green , and between the green and the violet are many shades of blue , from greenish - blue to deep indi- go . It is thought that , when we see a red light , cer- tain nerves in the ...
... shades of yellow , from deep - orange to yellowish - green , and between the green and the violet are many shades of blue , from greenish - blue to deep indi- go . It is thought that , when we see a red light , cer- tain nerves in the ...
Página 101
... shades of yellow with every change . In the same way , combine the green disk and the violet , and the spinning top will show a new shade of blue with every proportion in which the green and violet are mixed . Put on the red and violet ...
... shades of yellow with every change . In the same way , combine the green disk and the violet , and the spinning top will show a new shade of blue with every proportion in which the green and violet are mixed . Put on the red and violet ...
Página 102
... shades of yellow , blue , purple , and 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 ...
... shades of yellow , blue , purple , and 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 ...
Página 109
... shade , till the room is fully lighted , when it will appear in its real color . Bring the red cloth into the full sunlight , or throw a beam from the heliostat upon it , and it assumes a still lighter shade of red . Close the shutters ...
... shade , till the room is fully lighted , when it will appear in its real color . Bring the red cloth into the full sunlight , or throw a beam from the heliostat upon it , and it assumes a still lighter shade of red . Close the shutters ...
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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