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 40
... circle reaching from the beam of inci- dence to the beam of reflection . A quarter of a circle , as you know , is divided into 90 degrees . Another dotted line extends from O at the mirror to I on the quarter - circle , and divides it ...
... circle reaching from the beam of inci- dence to the beam of reflection . A quarter of a circle , as you know , is divided into 90 degrees . Another dotted line extends from O at the mirror to I on the quarter - circle , and divides it ...
Página 59
... circle into four equal parts , and are to serve as guides in some new experiments . Fill the bottle with clear water up to the hori- FIG . 14 . zontal line in the circle , REFRACTION OF LIGHT . 59.
... circle into four equal parts , and are to serve as guides in some new experiments . Fill the bottle with clear water up to the hori- FIG . 14 . zontal line in the circle , REFRACTION OF LIGHT . 59.
Página 60
... circle , and then , holding the bot- tle in a small horizontal beam of sunlight from the heliostat , you will see that the light passes directly through the water in the bottle or through the air above the water . To make this more ...
... circle , and then , holding the bot- tle in a small horizontal beam of sunlight from the heliostat , you will see that the light passes directly through the water in the bottle or through the air above the water . To make this more ...
Página 63
... circle , and then takes a new direction through the water in the lower half . You will observe in the drawing dotted horizontal lines extending from B to A , and from C to D. Look at the beam of light carefully , and with a pen mark ...
... circle , and then takes a new direction through the water in the lower half . You will observe in the drawing dotted horizontal lines extending from B to A , and from C to D. Look at the beam of light carefully , and with a pen mark ...
Página 64
... circle . Examine the beam of light in the bottle , and you will observe that it is bent , but at a different angle . Mark the two points where the beam crosses the circle above and below the water , and measure their distances from the ...
... circle . Examine the beam of light in the bottle , and you will observe that it is bent , but at a different angle . Mark the two points where the beam crosses the circle above and below the water , and measure their distances from the ...
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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