У вашего броузера проблема в совместимости с HTML5
Um estudo básico do plugin Sketchyphysics dentro do Sketchup.
Video-aula sobre as ferramentas do Sketchyphysics.
Link para baixar o Sketchup : http://sketchup.google.com/intl/pt-BR/download
Link para o kerkythea for Windows : http://www.kerkythea.net/joomla/index.php?option=com_remository&Itemid=42&func=fileinfo&id=64
Link para o SketchyPhysics : http://code.google.com/p/sketchyphysics/downloads/detail?name=SetupSketchyPhysics3.1%20%28WIN%29%20Oct7.exe&can=2&q=