File:PSM V23 D489 Longitudonal section of burning lignite.jpg
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current | 03:38, 17 September 2014 | 1,512 × 627 (63 KB) | Ineuw | Cleaned image and improved contrast | |
16:08, 30 August 2010 | 1,868 × 773 (60 KB) | Ineuw | {{Information |Description = Longitudonal section of burning lignite |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_23.djvu/489 |Date = 1883 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Po |
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