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#Mon Aug 09 11:49:32 CEST 2010
Slide__WTjXgKObEd-WfYQ0GneCwQ_title=
Slide__WTjXgKObEd-WfYQ0GneCwQ_footer=Athanasius Kircher\: De Arte Magnetica, 1641
Slide__WTjXgKObEd-WfYQ0GneCwQ_subTitle=17th Century Compass