Light: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light : for the Use of Students of Every AgeD. Appleton and Company, 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
12 inches angle of incidence appear Balfour Stewart beam of incidence beam of light beam of reflection beam of sunlight bit of paper black mirror black varnish block of wood bottle brackets bright candle centi centre cloth color color-top curious dark room diagram diameter direction disk distance dotted lines edge experiment falls fastened flask give green heliostat hole inch 25 millimetres inches 10 centimetres inches 15.2 centimetres inches 30.5 centimetres lamp lantern lens light enters light moves light passes look looking-glass magic lanterns marked metres mirror mucilage piece plano-convex lens point of incidence postal-card quicksilver rays red square reflected light refraction screen second drawing shade shadow shelf shining side slender beam slit smoke source of light spectrum spot of light square surface things top spin upright violet 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...