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 19
... centimetres ) by 12 inches ( 30.5 centimetres ) . These brackets are placed one on each side of the hole in the board , and are placed 14 inches ( 35.5 centimetres ) apart , and with the short arm of the bracket against the board . In ...
... centimetres ) by 12 inches ( 30.5 centimetres ) . These brackets are placed one on each side of the hole in the board , and are placed 14 inches ( 35.5 centimetres ) apart , and with the short arm of the bracket against the board . In ...
Página 20
... centimetres ) long , 61 inches ( 16 centimetres ) wide , and metres ) thick . Then make a flat , shaped like the figure marked G. be inch ( 7 millimetres ) thick , 5 metres ) along the straight side , and with the circular part with a ...
... centimetres ) long , 61 inches ( 16 centimetres ) wide , and metres ) thick . Then make a flat , shaped like the figure marked G. be inch ( 7 millimetres ) thick , 5 metres ) along the straight side , and with the circular part with a ...
Página 21
... centimetres ) square and one 10 inches ( 25.4 centimetres ) long and 6 inches ( 15.2 centimetres ) wide . These may be made of common looking - THE SOURCES OF LIGHT . 21.
... centimetres ) square and one 10 inches ( 25.4 centimetres ) long and 6 inches ( 15.2 centimetres ) wide . These may be made of common looking - THE SOURCES OF LIGHT . 21.
Página 24
... centimetres ) square , and lay a five - cent piece in the centre , and , with a knife , cut a hole in the card just the size of the coin . Then fasten this , with pins or tacks , over the opening in the heliostat . We have now a slender ...
... centimetres ) square , and lay a five - cent piece in the centre , and , with a knife , cut a hole in the card just the size of the coin . Then fasten this , with pins or tacks , over the opening in the heliostat . We have now a slender ...
Página 26
... perform an- other experiment , that will show us the the same thing we observed with the beam of light from the heliostat . To make these things , get a piece of wood 10 inches ( 25.4 centimetres ) long , 3 26 LIGHT .
... perform an- other experiment , that will show us the the same thing we observed with the beam of light from the heliostat . To make these things , get a piece of wood 10 inches ( 25.4 centimetres ) long , 3 26 LIGHT .
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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...