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 |
Dentro del libro
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Página 16
... hole in this paper about the size of a five - cent piece , and at once you will have a slender beam of sunlight entering the hole in the paper and falling on the floor . Close the upper part of the window 16 LIGHT . The Heliostat.
... hole in this paper about the size of a five - cent piece , and at once you will have a slender beam of sunlight entering the hole in the paper and falling on the floor . Close the upper part of the window 16 LIGHT . The Heliostat.
Página 19
... hole 5 inches ( 12.7 centi- metres ) in diameter , with its centre 8 inches from the bottom of the board . In the first drawing this hole can be seen at B , and in the second drawing it is shown by dotted lines at B. On one side of the ...
... hole 5 inches ( 12.7 centi- metres ) in diameter , with its centre 8 inches from the bottom of the board . In the first drawing this hole can be seen at B , and in the second drawing it is shown by dotted lines at B. On one side of the ...
Página 20
... hole , inch ( 12 millimetres ) in diameter , is made in this , as represented in the drawing , and then the half- round piece must be screwed to the flat piece of wood we just cut out . In the figure marked N you will see these two ...
... hole , inch ( 12 millimetres ) in diameter , is made in this , as represented in the drawing , and then the half- round piece must be screwed to the flat piece of wood we just cut out . In the figure marked N you will see these two ...
Página 21
... hole , inch ( 12 milli- metres ) in diameter , is cut in the two ends , as marked by dotted lines at J , and through these holes an iron bolt and nut are fitted , so as to hold the circular piece , G , and yet allow it to turn freely in ...
... hole , inch ( 12 milli- metres ) in diameter , is cut in the two ends , as marked by dotted lines at J , and through these holes an iron bolt and nut are fitted , so as to hold the circular piece , G , and yet allow it to turn freely in ...
Página 23
... hole through it will be in the middle . The dotted line marked " At Equi- nox " shows the path of the light from the sun , and HORIZONTAL AT EQUI SCALE 8 SIZE . Mirror at Winter Solstice Mirror at Equinox Mirror at Summer Solstice FIG 2 ...
... hole through it will be in the middle . The dotted line marked " At Equi- nox " shows the path of the light from the sun , and HORIZONTAL AT EQUI SCALE 8 SIZE . Mirror at Winter Solstice Mirror at Equinox Mirror at Summer Solstice FIG 2 ...
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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...