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#Mon Aug 09 11:59:10 CEST 2010
Text__ump5kKOcEd-WfYQ0GneCwQ_title=Can the Principle of Relativity Be Generalized?
Text__ump5kKOcEd-WfYQ0GneCwQ_text=<p>Einstein reports to Sommerfeld about his attempt to generalize the principle of relativity to accelerated movements. The point of departure for this consideration is Einstein\u2019s equivalence principle, according to which an accelerated laboratory and a non-accelerated laboratory with a field of gravity are identical. This idea initially receives a cool reception from Einstein\u2019s colleagues.</p>