Light: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light : for the Use of Students of Every AgeD. Appleton and Company, 1877 - 112 páginas |
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Página 14
... bright light . Sometimes , at night , the northern sky is full of red or yellow light , dart- ing up in dancing streamers , or resting in pale clouds in the dark sky . You have seen the tiny sparkles of light that spring from the cat's ...
... bright light . Sometimes , at night , the northern sky is full of red or yellow light , dart- ing up in dancing streamers , or resting in pale clouds in the dark sky . You have seen the tiny sparkles of light that spring from the cat's ...
Página 15
... 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 , strontium ...
... 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 , strontium ...
Página 16
... bright , sunny day , and go into a room having windows through which the sun shines . Close the shutters , curtains , and blinds , at all the win- dows save one . At this window draw the curtain down till it nearly closes the window ...
... bright , sunny day , and go into a room having windows through which the sun shines . Close the shutters , curtains , and blinds , at all the win- dows save one . At this window draw the curtain down till it nearly closes the window ...
Página 17
... 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 of light keeps moving . Besides this , the beam is not level , 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 of light keeps moving . Besides this , the beam is not level , and ...
Página 23
... one mirror to the other . The position of the movable mirror is also shown in the positions it has at summer and winter solstices . FIRST EXPERIMENT WITH THE HELIOSTAT . Choose a bright sunny THE SOURCES OF LIGHT . 23.
... one mirror to the other . The position of the movable mirror is also shown in the positions it has at summer and winter solstices . FIRST EXPERIMENT WITH THE HELIOSTAT . Choose a bright sunny THE SOURCES OF LIGHT . 23.
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Términos y frases comunes
12 inches angle of incidence appear Balfour Stewart beam of incidence beam of light beam of reflection beam of sunlight bit of paper black mirror black varnish block of wood bottle brackets bright candle centi centre cloth color color-top curious dark room diagram diameter direction disk distance dotted lines edge experiment falls fastened flask give green heliostat hole inch 25 millimetres inches 10 centimetres inches 15.2 centimetres inches 30.5 centimetres lamp lantern lens light enters light moves light passes look looking-glass magic lanterns marked metres mirror mucilage piece plano-convex lens point of incidence postal-card quicksilver rays red square reflected light refraction screen second drawing shade shadow shelf shining side slender beam slit smoke source of light spectrum spot of light square surface things top spin upright violet 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...