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#Mon Aug 09 12:00:46 CEST 2010
Slide__2wr7wKOcEd-WfYQ0GneCwQ_footer=On loan from\: Museo per la Storia \u2013 Universit\u00E0 di Pavia
Slide__2wr7wKOcEd-WfYQ0GneCwQ_title=Cathode Ray Tube with Maltese Cross
Slide__2wr7wKOcEd-WfYQ0GneCwQ_subTitle=Demonstration of the shadowing of cathode rays performed by Crookes, around 1893