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 9
... things , their relation to each other , and their action one upon another — the better he can work . A knowledge of the phenomena of Nature is the most important knowledge one can have who wishes to succeed in life . More than this ...
... things , their relation to each other , and their action one upon another — the better he can work . A knowledge of the phenomena of Nature is the most important knowledge one can have who wishes to succeed in life . More than this ...
Página 10
... things being equal , the most likely to be suc- cessful in his work . You hope to have a share in the world's work , and you wish to study Nature and her phenomena . You can read about these things in books . A better way is to make ...
... things being equal , the most likely to be suc- cessful in his work . You hope to have a share in the world's work , and you wish to study Nature and her phenomena . You can read about these things in books . A better way is to make ...
Página 11
... things in certain relations with other things , for the purpose of finding out how they affect each other . Experi- menting is thus a finding out . It is the design of this book to tell you something about experiments in the phenomena ...
... things in certain relations with other things , for the purpose of finding out how they affect each other . Experi- menting is thus a finding out . It is the design of this book to tell you something about experiments in the phenomena ...
Página 14
... things on the earth , or in the air that surrounds the earth . The most common light we call firelight , or the light that comes from combustion . When we light a lamp or candle , we start a curious chemical action that gives out light ...
... things on the earth , or in the air that surrounds the earth . The most common light we call firelight , or the light that comes from combustion . When we light a lamp or candle , we start a curious chemical action that gives out light ...
Página 15
... the sun is the brightest and the cheapest light we can find , and is the best for our ex- periments . A good lamp is the next best thing , and in experimenting we will use either the sun or a THE SOURCES OF LIGHT . 15.
... the sun is the brightest and the cheapest light we can find , and is the best for our ex- periments . A good lamp is the next best thing , and in experimenting we will use either the sun or a THE SOURCES OF LIGHT . 15.
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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...