<~> !-Sketchyphysics-! <~>

To install: First, download winrar. than, Go to http://www.crai.archi.fr/RubyLibraryDepot/Ruby/em_cam_page.htm, klick on Sketchyphysics, dowload it. Open it with WinRar. Extract it to the plugins map of sketchup. (C:\Program Files\Google\Google SketchUp 6\Plugins) Than open sketchup.