File:Tyndall's glass tube.gif

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English: The apparatus with which John Tyndall observed the Tyndall effect:
"L represents the electric lamp, s s' the experimental tube, pp' the pipe leading to the air-pump, and F the test-tube containing the volatile liquid. The tube t t' is plugged with cotton-wool intended to intercept the floating matter of the air; the bent tube T' contains caustic potash, the tube T sulphuric acid, the one intended to remove the carbonic acid and the other the aqueous vapour of the air."
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Source http://www.gutenberg.org/files/24527/24527-h/24527-h.htm#Toc158391601
Author John Tyndall's draughtsman; scanned by Jon Richfield
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current16:26, 28 September 2008Thumbnail for version as of 16:26, 28 September 20081,755 × 1,209 (255 KB)Pieter Kuiper (talk | contribs){{Information |Description={{en|1=The apparatus with which John Tyndall observed the Tyndall effect: <br> "L represents the electric lamp, s s' the experimental tube, pp' the pipe leading to the air-pump, and F the test-tube containing the volatile liquid

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