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#Mon Aug 09 12:08:41 CEST 2010
Text__z1BmcKOdEd-WfYQ0GneCwQ_title=Armed Loadstone
Text__z1BmcKOdEd-WfYQ0GneCwQ_text=<p>It has been known since ancient times that the mineral magnetite (loadstone) possesses magnetic properties. Interest in magnetism is reawakened in the Early Modern period. The relatively weak magnetism of the mineral is increased by arming techniques using an iron housing.</p>