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#Mon Aug 09 11:59:44 CEST 2010
Text__w4Z5wKOcEd-WfYQ0GneCwQ_title=The Experimental Examination of E \= mc<sup>2</sup>  
Text__w4Z5wKOcEd-WfYQ0GneCwQ_text=This unpublished manuscript is a summary of the Special Theory of Relativity and is  the earliest surviving document in which Einstein's famous formula is to be found in  the form well-known today. On the page shown, Einstein is concerned with the  experimental examination of the equivalence of mass and energy. He establishes that  radioactive decays are the only natural events that release enough energy to measure  this equivalence.