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 12
... curious , and perhaps exhibit to our friends a number of charming pictures , groups of colors , magical reflections , spectres , and shadows . All light comes from bodies on the earth or in the air , or from bodies outside of the ...
... curious , and perhaps exhibit to our friends a number of charming pictures , groups of colors , magical reflections , spectres , and shadows . All light comes from bodies on the earth or in the air , or from bodies outside of the ...
Página 14
... curious chemical action that gives out light and heat . The result of this action is fire , and the light that comes from the flame is firelight . When a thunder - storm rises , we see the lightning leap from the clouds , and give out ...
... curious chemical action that gives out light and heat . The result of this action is fire , and the light that comes from the flame is firelight . When a thunder - storm rises , we see the lightning leap from the clouds , and give out ...
Página 26
... curious effects . Try it over several times , and see if it does not show you something about the beam of sunlight . Plainly , if the thread is lighted up its whole length when it is straight , then the beam of light must be straight ...
... curious effects . Try it over several times , and see if it does not show you something about the beam of sunlight . Plainly , if the thread is lighted up its whole length when it is straight , then the beam of light must be straight ...
Página 38
... curious matter . Our beam of light enters the room , strikes the mirror , and then we appear to have another . It is the same beam , thrown back from the glass . This turning back of a beam of light we call the reflection of light ...
... curious matter . Our beam of light enters the room , strikes the mirror , and then we appear to have another . It is the same beam , thrown back from the glass . This turning back of a beam of light we call the reflection of light ...
Página 40
... curious part of this matter is , that these two angles are always equal . Here they are both angles of 45 degrees . Move the mirror about in any direction , and meas- ure the angles of incidence and the angles of reflec- tion , and ...
... curious part of this matter is , that these two angles are always equal . Here they are both angles of 45 degrees . Move the mirror about in any direction , and meas- ure the angles of incidence and the angles of reflec- tion , and ...
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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