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 21
Página 16
... draw the curtain down till it nearly closes the window , and then cover this open space with a strip of thick wrapping - paper . Cut a hole in this paper about the size of a five - cent piece , and at once you will have a slender beam ...
... draw the curtain down till it nearly closes the window , and then cover this open space with a strip of thick wrapping - paper . Cut a hole in this paper about the size of a five - cent piece , and at once you will have a slender beam ...
Página 17
... drawing represents a front - view of the heliostat . The second drawing gives an end - view , and we can now make one by simply following these few directions : The part marked A in the two draw- ings is a piece of pine board , 23 ...
... drawing represents a front - view of the heliostat . The second drawing gives an end - view , and we can now make one by simply following these few directions : The part marked A in the two draw- ings is a piece of pine board , 23 ...
Página 19
... drawing the two brackets are shown , and in the second drawing one is shown in profile , and they are marked C in both drawings . On the end of the brackets is placed a flat piece of board , 6 inches ( 16.5 centimetres ) wide and 14 ...
... drawing the two brackets are shown , and in the second drawing one is shown in profile , and they are marked C in both drawings . On the end of the brackets is placed a flat piece of board , 6 inches ( 16.5 centimetres ) wide and 14 ...
Página 20
... drawing . This shelf , with the wooden back , is marked D in the drawings . These things make the fixed parts of the heliostat , and we have next to make the movable parts , or the machinery whereby it can be adjusted to the move- ment ...
... drawing . This shelf , with the wooden back , is marked D in the drawings . These things make the fixed parts of the heliostat , and we have next to make the movable parts , or the machinery whereby it can be adjusted to the move- ment ...
Página 21
... drawing . An opening of the same di- ameter , and having the same direction , is also cut through the board , and the movable piece , marked I , is put through this hole , as in the drawing . Final- ly , we want a wooden washer , 3 ...
... drawing . An opening of the same di- ameter , and having the same direction , is also cut through the board , and the movable piece , marked I , is put through this hole , as in the drawing . Final- ly , we want a wooden washer , 3 ...
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