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#Mon Aug 09 12:00:46 CEST 2010
Text__5efl0KOcEd-WfYQ0GneCwQ_text=Steam engines transform heat into mechanical energy. The following pictures of models of steam engines come from a 1911 catalogue for teaching aids.
Text__5efl0KOcEd-WfYQ0GneCwQ_title=Steam Engines