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આ ફાઇલ Wikimedia Commonsનો ભાગ છે અને શક્ય છે કે અન્ય પ્રકલ્પોમાં પણ વપરાઇ હોય. ત્યાંનાં મૂળ ફાઇલનાં વર્ણનનાં પાના પર આપેલું વર્ણન નીચે દર્શાવેલું છે.

વર્ણન
English: Direct recomposition of the colors. "Fig. 10 shows how a common iron top, such as may be found in any toy-store, may be transmuted into a color-top. The shape of the handle is of no importance. By fastening disks of various colors, made of drawing-paper, around it, all sorts of chromatic changes may be studied. With red, green, and violet, white will appear by spinning the top. With one-quarter green and three-quarters red a deep orange may be produced. Directions are given for using the top on the lantern, and casting the colors on the screen, so that a great many persons may see it at once."
તારીખ
સ્રોત Popular Science Monthly Volume 11
લેખક Unknown authorUnknown author
પરવાનગી
(આ ફાઈલનો ફરી ઉપયોગ)
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વર્તમાન૦૭:૫૩, ૨૮ જુલાઇ ૨૦૧૦૦૭:૫૩, ૨૮ જુલાઇ ૨૦૧૦નું લઘુચિત્ર સંસ્કરણ૧,૩૪૬ × ૧,૩૧૮ (૨૦૬ KB)Ineuw{{Information |Description = Direct recomposition of the colors |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_11.djvu/687 |Date = 1877 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} {{GFDL-user-w|en|Wi

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