File:Macewen's Triangle demonstration.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	09:39, 23 July 2012		1,457 × 1,140 (222 KB)	Materialscientist	{{Information \|Description ={{en\|1=William Macewen (1848-1924) demonstrating his triangle to a group which includes Lane, Hirschfelder, Barkan, Stillman. }} \|Source =http://ihm.nlm.nih.gov/images/B17743 \|Author =Unknown \|Date ...

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