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File:PSM V36 D052 Sensitive batwing flames testing light and its effect on sound.jpg

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Description Sensitive batwing flames testing light and its effect on sound
Date between 1889 and 1890
date QS:P,+1850-00-00T00:00:00Z/7,P1319,+1889-00-00T00:00:00Z/9,P1326,+1890-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 36
Author Unknown authorUnknown author
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Date/TimeThumbnailDimensionsUserComment
current19:45, 7 June 2015Thumbnail for version as of 19:45, 7 June 20151,035 × 788 (55 KB)IneuwCleaned image and improved contrast
05:07, 15 October 2010Thumbnail for version as of 05:07, 15 October 20101,066 × 786 (63 KB)Ineuw{{Information |Description = Sensitive batwing flames testing light and its effect on sound |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_36.djvu/52 |Date = 1889-1890 |Author = Unknown |Permission = {{PD-old}} |other_ve
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