Keywords: Time-dilation-001.svg A photon clock at a resting frame of reference A photon bounces between mirrors A and B; the clock ticks every time it hits the mirror A If the separation between the mirrors is L then this clock's period is 2L/c I created this SVG version of Image Time-dilation-001 jpg using Inkscape en wikipedia Hansmuller 2006 01 08 first version ; 2007 12 31 last version Mdd4696 wikipedia en Mdd4696 Original upload log page en wikipedia Time-dilation-001 svg 2007-12-31 11 05 DVdm 400×450× 13525 bytes <nowiki>Delta notation to conform with rest of article and to avoid confusion with twin picture</nowiki> 2006-01-08 02 55 Mdd4696 400×450× 12247 bytes <nowiki>A photon clock in a rest frame A photon bounces between mirrors A and B; the clock ticks every time it hits the mirror A If the separation between the mirrors is L then this clock's period is 2L/c I created this SVG version of Time-dilation-001 jp</nowiki> Special relativity |