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 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 AT EQUINOX .... HORIZONTAL .. SCALE 8 SIZE ... Mirror at Winter Solstice Mirror at Summer Solstice FIG 2 . K ...
... 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 AT EQUINOX .... HORIZONTAL .. SCALE 8 SIZE ... Mirror at Winter Solstice Mirror at Summer Solstice FIG 2 . K ...
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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