You are free to put this badge on your website. Please copy & paste the following HTML code into your page.
User Reviews :
When I fininish my university degree, I had to develop a software application. As I like reading things about the universe, I decided to develop this application, which simulates, under Newton's Universal Gravity Law, orbits of any planet or object with different referential systems. You can see the orbits in 2D and 3D. Here, a simulation the some artificial satellites around the Earth.