It is a billiard simulation game you can use to learn how to play billiard games and enjoy playing the game with your friends. It truly simulates billiard physics including side ball spin, back spin, forward spin, curve ball trajectories. The 3D engine lets you move viewpoint in all directions and make it closer to table or farther from it. You can move it while ball movement to see trajectories in the most convenient way.

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 introductory to advanced premade simulations with activities page in html-format. Uses actual pictures of planets. Plot orbits in a plane or in 3D. View time, distances, speeds, accelerations and energies as they change. Zoom and change parameters during the simulation.

Build custom interactive diagrams, network, workflow editors, flowcharts, or software design tools. Includes many predefined kinds of nodes, links, and basic shapes. Supports layers, scrolling, zooming, selection, drag-and-drop, clipboard, in-place editing, tooltips, grids, printing, overview window, palette. 100% implemented in Java. Requires Java2. Document/View/Tool architecture with many properties. Optional automatic layout.

The prime purpose of Gravitorium is to let you play with ideas about gravity and gravitational systems. While it's not intended to be a highly accurate solar system simulator, at low speeds its accuracy is really pretty good. And, best of all, it lets you "play universe maker". Throw in a few extra planets, add a black hole, set a comet plunging towards the Earth! Or create an entirely new solar system from scratch.

Build custom interactive diagrams, network, workflow editors, flowcharts, or software design tools. Includes many predefined kinds of nodes, links, and basic shapes. Supports layers, scrolling, zooming, selection, drag-and-drop, clipboard, in-place editing, tooltips, grids, printing, overview window, palette. Many useful sample applications. Document/View/Tool architecture with many properties&events. Optional automatic layout & instruments.

Einstein's General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light. So, a very massive object, such as a cluster of galaxies can act as a gravitational lens. With this program, one can draw images to see the effect of gravitational lensing. You can easily test the effects of several parameters by changing them and redrawing the image.