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 35
... so placed that the wick stands di- agonally to the screen . These are all the things we need to make a most interesting experiment in measuring light , and we have only THE SOURCES OF LIGHT . 35 Experiment in measuring Light.
... so placed that the wick stands di- agonally to the screen . These are all the things we need to make a most interesting experiment in measuring light , and we have only THE SOURCES OF LIGHT . 35 Experiment in measuring Light.
Página 36
... interesting experiment in measuring light , and we have only to make the room dark , or put out all the other lights , if it is evening , and we can go on with the work . Let the candle burn a moment or two , and then bend the wick down ...
... interesting experiment in measuring light , and we have only to make the room dark , or put out all the other lights , if it is evening , and we can go on with the work . Let the candle burn a moment or two , and then bend the wick down ...
Página 49
... interesting one , and may be tried with a number of boys or girls , and each may see the peculiar beating of his or her pulse pictured on the wall in the most singular and startling manner . If any of the persons whose pulse - beats are ...
... interesting one , and may be tried with a number of boys or girls , and each may see the peculiar beating of his or her pulse pictured on the wall in the most singular and startling manner . If any of the persons whose pulse - beats are ...
Página 58
... interesting . THE MILK - AND - WATER LAMP . Take away the jar and put a clear glass tumbler in its place . Fill this with water and throw the beam of reflected light down upon it , and the water will be lighted up so that we can easily ...
... interesting . THE MILK - AND - WATER LAMP . Take away the jar and put a clear glass tumbler in its place . Fill this with water and throw the beam of reflected light down upon it , and the water will be lighted up so that we can easily ...
Página 103
... interesting and beautiful exhibition that will be sure to please all who see it . DIRECT RECOMPOSITION OF THE COLORS OF THE SPECTRUM . Let the spectrum fall on a mirror , and throw its reflection upon a distant part of the room ...
... interesting and beautiful exhibition that will be sure to please all who see it . DIRECT RECOMPOSITION OF THE COLORS OF THE SPECTRUM . Let the spectrum fall on a mirror , and throw its reflection upon a distant part of the room ...
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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...