. The principles of physics. ng been reflected at e as though it came from o. Thepencil which would enter the eye from a third image at the left ofa may be traced through all its reflections in like manner. Assome light is lost at each reflection, the images decrease in bright-ness as they recede. A kaleidoscope is constructed on the principle of multiple re-flection. It consists of a tube containing three mirrors placed atangles of 60°. Pieces of colored glass, free to move at one end ofthe tube, are seen through an eye-pieceat the opposite end of the tube, multi-plied by repeated reflections
. The principles of physics. ng been reflected at e as though it came from o. Thepencil which would enter the eye from a third image at the left ofa may be traced through all its reflections in like manner. Assome light is lost at each reflection, the images decrease in bright-ness as they recede. A kaleidoscope is constructed on the principle of multiple re-flection. It consists of a tube containing three mirrors placed atangles of 60°. Pieces of colored glass, free to move at one end ofthe tube, are seen through an eye-pieceat the opposite end of the tube, multi-plied by repeated reflections. Multiplied images of a small, brightobject, as of a candle flame (Fig. 240),often seen in a glass mirror, are pro-duced by repeated reflections betweenthe anterior surface and the silveredposterior surface of the mirror. Ateach internal impact on the first sur-face some light escapes, and shows usan image, while another portion is re-flected to the back, and thence forwardagain, showing another image, and so on. Tig. 338 ETHER DYNAMICS.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1895
