Keywords: Pendule2.gif Robert Ferréol fr wikipedia Korrigan CommonsHelper 2006-03-19 Robert FERREOL wikipedia fr Robert FERREOL original upload log page fr wikipedia Pendule2 gif 2006-03-19 22 33 Robert FERREOL 241×296× 93589 bytes <nowiki>Robert Ferréol</nowiki> Diagrams of pendulums Animated GIF Animations of physics |