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 12
... darkness of the night seems to fade away , and , wherever we look , without or within , all the air and space about us appears to be full of light . When evening comes again , the daylight disappears , and the moon and the stars give us ...
... darkness of the night seems to fade away , and , wherever we look , without or within , all the air and space about us appears to be full of light . When evening comes again , the daylight disappears , and the moon and the stars give us ...
Página 14
... dark sky . You have seen the tiny sparkles of light that spring from the cat's back when you stroke her fur in the dark , or have seen the sparks that leap from an electrical - machine . All these the aurora , the lightning , and the ...
... dark sky . You have seen the tiny sparkles of light that spring from the cat's back when you stroke her fur in the dark , or have seen the sparks that leap from an electrical - machine . All these the aurora , the lightning , and the ...
Página 15
... dark , bright spots of light on his body . A piece of salted fish or chip of decayed wood will sometimes give a pale , cold light in the night ; and certain chemi- cals , like Bologna phosphorus and compounds of sul- phur , lime ...
... dark , bright spots of light on his body . A piece of salted fish or chip of decayed wood will sometimes give a pale , cold light in the night ; and certain chemi- cals , like Bologna phosphorus and compounds of sul- phur , lime ...
Página 16
... dark room , where we can see it and walk about it and examine it on every side , bend it , split it up into several beams , make it pass through glass or water , and do anything else that will illustrate the laws that govern it . Choose ...
... dark room , where we can see it and walk about it and examine it on every side , bend it , split it up into several beams , make it pass through glass or water , and do anything else that will illustrate the laws that govern it . Choose ...
Página 17
... dark , our slender beam of light will stand out clear , sharp , and bright . As soon as we begin to study this beam of light , we find two little matters that may give us trouble . The sun does not stand still in the sky , and our beam ...
... dark , our slender beam of light will stand out clear , sharp , and bright . As soon as we begin to study this beam of light , we find two little matters that may give us trouble . The sun does not stand still in the sky , and our beam ...
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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