Wright, Mark R., 1854- · London : Longmans · leaf 108
Kaleidoscope is an instrument, made by placing twostrips of glass in a tube, so that they are inclined at an angle of60°; one end of the tube is closed by a piece of roughened glass;on this is placed pieces of bright coloured glass and beads,kept loosely in their places by a sheet of plane glass.… … Fig. 74. lOO Light light. On looking at a window-pane obliquely, we see the ob-jects outside the room, and also the images of the curtains andfurniture inside the room. This mixing of objects and imagesis the principle of most ghost experiments. Reflecting Power of Bodies.—The reflecting power…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
