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 15
Página 38
... beam of light into the darkened room . Then get a small looking - glass , or hand - mirror , and a car- penter's steel square , or a sheet of stiff paper , having perfectly square corners . Hold ... LIGHT . CHAPTER III Reflection of Light.
... beam of light into the darkened room . Then get a small looking - glass , or hand - mirror , and a car- penter's steel square , or a sheet of stiff paper , having perfectly square corners . Hold ... LIGHT . CHAPTER III Reflection of Light.
Página 39
... mirror , so that the point or corner will touch the glass just where the sunlight falls upon it . Now one edge of B M FIG . 8 . A the square is brightly lighted by the sunbeam , and if the ... beam reflected from the REFLECTION OF LIGHT . 39.
... mirror , so that the point or corner will touch the glass just where the sunlight falls upon it . Now one edge of B M FIG . 8 . A the square is brightly lighted by the sunbeam , and if the ... beam reflected from the REFLECTION OF LIGHT . 39.
Página 40
... beam reflected from the mirror , that is marked M. To make this ... beam the beam of incidence , and we say that it travels in the direction of incidence , as shown by the arrow . The second beam , marked B , we call the beam of reflection ...
... beam reflected from the mirror , that is marked M. To make this ... beam the beam of incidence , and we say that it travels in the direction of incidence , as shown by the arrow . The second beam , marked B , we call the beam of reflection ...
Página 41
... mirror is at an angle of 45 degrees with the beam of incidence , and that the beam of reflection is at an angle of 90 degrees with the incident beam . Hence , if the mirror is tilted through a certain angle , the reflected beam is ...
... mirror is at an angle of 45 degrees with the beam of incidence , and that the beam of reflection is at an angle of 90 degrees with the incident beam . Hence , if the mirror is tilted through a certain angle , the reflected beam is ...
Página 42
... reflection from the lamplight or the light from the window shining through the hole marked A in the drawing . Get the needle - pointed awl and place it so that the ... light reflected from a mirror . The beam of incidence passes 42 LIGHT .
... reflection from the lamplight or the light from the window shining through the hole marked A in the drawing . Get the needle - pointed awl and place it so that the ... light reflected from a mirror . The beam of incidence passes 42 LIGHT .
Otras ediciones - Ver todas
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...