3-D Vector Fields is a free Jaba based physics simulation that demonstrates various properties of vector fields. You can select from a number of vector fields and see how particles move if it is treated as either a velocity or a force field. This helps you visualize the field. The menu in the upper right has a variety of different fields to choose from. You can also input your own by scrolling to the bottom of that menu and selecting "user-defined field" or "user-defined potential".Requirements:

Ссылка: http://www.fals..d/vector3d.zip