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 4
... give to every teacher and scholar the knowledge of the art of experimenting . To accomplish this very desir- able object , he had invented the simplest and cheapest apparatus , and he and his scientific friends had been satisfied with ...
... give to every teacher and scholar the knowledge of the art of experimenting . To accomplish this very desir- able object , he had invented the simplest and cheapest apparatus , and he and his scientific friends had been satisfied with ...
Página 9
... the phenomena of Nature is the most important knowledge one can have who wishes to succeed in life . More than this , the observation of facts in Nature gives readiness of perception PREFATORY NOTE CHAPTER I Introduction.
... the phenomena of Nature is the most important knowledge one can have who wishes to succeed in life . More than this , the observation of facts in Nature gives readiness of perception PREFATORY NOTE CHAPTER I Introduction.
Página 10
... gives readiness of perception , and study and reading upon the causes of these facts stimulate the mind to healthful and pleas- urable action . The laws that govern the physical phenomena about us were not told to us by ancient gods ...
... gives readiness of perception , and study and reading upon the causes of these facts stimulate the mind to healthful and pleas- urable action . The laws that govern the physical phenomena about us were not told to us by ancient gods ...
Página 12
... give us another light . In the house we start the lamps , and they give us another light . Out - of- doors , in the dusky meadows , we see the fire - flies dart- ing about , and giving out pale sparkles of yellow light as they fly . We ...
... give us another light . In the house we start the lamps , and they give us another light . Out - of- doors , in the dusky meadows , we see the fire - flies dart- ing about , and giving out pale sparkles of yellow light as they fly . We ...
Página 13
... give out their light both day and night . The brightest of these stars is the sun . When it shines upon us , the other stars appear to be lost in the brighter light of this greater star , and we cannot see them . At night , when the sun ...
... give out their light both day and night . The brightest of these stars is the sun . When it shines upon us , the other stars appear to be lost in the brighter light of this greater star , and we cannot see them . At night , when the sun ...
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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...