Educational software allowing to build a large number of mechanics problems, show forces, angular momentum, frictions, gravitation, ..It is possible to build complex geometric structures and to observe the tensions within the objects.Position/velocity/acceleration and energy graphs are displayed in real time and can be exported in an external software.On a larger scale it is possible to observe and interact with massive bodies such as planets, search for stable orbits, observe the gravitational field, tidal effects ... the solar system is available in the models with the main planets including Pluto and Charon.Original version (2006 !) updated and optimized for Windows 7, 10, 11.(compatible with OpenGL 1.4)Useful shortcut keys :1-4 View from above/front/right/perspectiveO Center view at originC Center view on objectF Follow selected objectCtrl+T Switch between black and white themesVisualis Electromagnetism is also available on Steam !(If Visualis does not appear in your Steam library please verify that 'Softwares' is checked in the top-left combo-box)