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 |
Dentro del libro
Resultados 1-5 de 12
Página 45
... meet the point of the real pencil , and that there is a little space between them . The reflection we see in the glass is from the smooth surface of the quick- silver at the back of the glass , and the space between the reflection and ...
... meet the point of the real pencil , and that there is a little space between them . The reflection we see in the glass is from the smooth surface of the quick- silver at the back of the glass , and the space between the reflection and ...
Página 51
... meet in the eye . The dotted lines and the rings projected beyond the tube show how they appear to the eye . By studying this drawing carefully , and trying cross cuts and slits in the card in place of the single hole , you will get a ...
... meet in the eye . The dotted lines and the rings projected beyond the tube show how they appear to the eye . By studying this drawing carefully , and trying cross cuts and slits in the card in place of the single hole , you will get a ...
Página 65
... meet the water in a normal direc- tion . If it meets the water on either side of this normal , it is refracted . Glass , diamonds , mica , and every transparent substance , have their own peculiar refraction . Glass has an index of ...
... meet the water in a normal direc- tion . If it meets the water on either side of this normal , it is refracted . Glass , diamonds , mica , and every transparent substance , have their own peculiar refraction . Glass has an index of ...
Página 69
... meet the sky , as it goes over a hill . The objects near this point appear to be distorted and to tremble , or they assume fantastic shapes . Here we have an instance of refraction caused by the heated air just above the surface of the ...
... meet the sky , as it goes over a hill . The objects near this point appear to be distorted and to tremble , or they assume fantastic shapes . Here we have an instance of refraction caused by the heated air just above the surface of the ...
Página 72
... fully , and that the reflected beam meets the bowl on every side , so that there are no shadows inside the box . Here we have a broad beam of light passing from the air into water , and our experiments have shown 72 LIGHT .
... fully , and that the reflected beam meets the bowl on every side , so that there are no shadows inside the box . Here we have a broad beam of light passing from the air into water , and our experiments have shown 72 LIGHT .
Otras ediciones - Ver todas
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