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 15
... 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 , and barium , if placed in the sunlight in glass vessels and then taken into ...
... 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 , and barium , if placed in the sunlight in glass vessels and then taken into ...
Página 20
... wood at the ends , as in the drawing . This shelf , with the wooden back , is marked D in the drawings . inch ( 12 milli- half - round piece , This piece must inches ( 14 centi- These things make the fixed parts of the heliostat , and ...
... wood at the ends , as in the drawing . This shelf , with the wooden back , is marked D in the drawings . inch ( 12 milli- half - round piece , This piece must inches ( 14 centi- These things make the fixed parts of the heliostat , and ...
Página 21
... wood K , as shown by the dotted lines , and then this block is securely fastened to the back of the large board , as ... wooden washer , 3 inches ( 8.7 centi- metres ) wide , as represented at M. This we slip over the long wooden handle ...
... wood K , as shown by the dotted lines , and then this block is securely fastened to the back of the large board , as ... wooden washer , 3 inches ( 8.7 centi- metres ) wide , as represented at M. This we slip over the long wooden handle ...
Página 22
... Wood , 50 cents ; labor , $ 1.75 ; glass , $ 1 ; iron nut , 5 cents ; brackets , 50 cents -total , $ 3.80 . When finished , the instrument should have a coat of shellac - varnish , and , when this is done , the mirrors may be put in ...
... Wood , 50 cents ; labor , $ 1.75 ; glass , $ 1 ; iron nut , 5 cents ; brackets , 50 cents -total , $ 3.80 . When finished , the instrument should have a coat of shellac - varnish , and , when this is done , the mirrors may be put in ...
Página 23
... wood marked K to have a slightly different shape , so that the hole through it will be in the middle . The dotted line marked " At Equi- nox " shows the path of the light from the sun , and HORIZONTAL AT EQUI SCALE 8 SIZE . Mirror at ...
... wood marked K to have a slightly different shape , so that the hole through it will be in the middle . The dotted line marked " At Equi- nox " shows the path of the light from the sun , and HORIZONTAL AT EQUI SCALE 8 SIZE . Mirror at ...
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Términos y frases comunes
17.8 centimetres angle of incidence Animals appear beam of light beam of reflection beam of sunlight beautiful black mirror block of wood blue BOND STREET bright candle centi centre CHARLES BARNARD circle cloth color color-top critical angle curious dark room diagram diameter direction disk distance dotted lines experiment falls fastened flask focus give glass gray paper heliostat hold hole Illustrations inch 25 millimetres inches 15.2 centimetres index of refraction lamp lantern light entering light passes look looking-glass magic lanterns metres mirror mucilage phenomena picture piece plano-convex lens point of incidence postal-card rays red square reflected light refraction represents ring screen shade shadow sheet shelf shine side slender beam slide slip slit smoke spot of light square stars straight surface things top spin tube 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...