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
... pass through glass or water , and do anything else that will illustrate the laws that govern it . Choose a bright , sunny day , and go into a room . having windows through which the sun shines . Close the shutters , curtains , and ...
... pass through glass or water , and do anything else that will illustrate the laws that govern it . Choose a bright , sunny day , and go into a room . having windows through which the sun shines . Close the shutters , curtains , and ...
Página 23
... passes from one mirror to the other . The position of the movable mirror is also shown in the positions it has at summer and winter solstices . FIRST EXPERIMENT WITH THE HELIOSTAT . Choose a bright sunny THE SOURCES OF LIGHT . 23.
... passes from one mirror to the other . The position of the movable mirror is also shown in the positions it has at summer and winter solstices . FIRST EXPERIMENT WITH THE HELIOSTAT . Choose a bright sunny THE SOURCES OF LIGHT . 23.
Página 32
... pass . C is the paper screen , and D is the first shadow made on the screen when it was 24 inches from the lamp . E is the second shadow made on the screen when it was 36 inches from the lamp . If you lay the paper C on the tracing of ...
... pass . C is the paper screen , and D is the first shadow made on the screen when it was 24 inches from the lamp . E is the second shadow made on the screen when it was 36 inches from the lamp . If you lay the paper C on the tracing of ...
Página 42
... this position with a piece of wax , as represented in the picture . You will readily see that this experiment is the same as the last . Again we have a beam of light reflected from a mirror . The beam of incidence passes 42 LIGHT .
... this position with a piece of wax , as represented in the picture . You will readily see that this experiment is the same as the last . Again we have a beam of light reflected from a mirror . The beam of incidence passes 42 LIGHT .
Página 43
... passes through the postal - card at A and finds its point of incidence on the mirror , and the beam of reflection . extends from the point of incidence to the second card at B. Take a sheet of stiff paper 10 inches ( 25.4 centi- metres ) ...
... passes through the postal - card at A and finds its point of incidence on the mirror , and the beam of reflection . extends from the point of incidence to the second card at B. Take a sheet of stiff paper 10 inches ( 25.4 centi- metres ) ...
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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...