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.
Teaching Templates 2.3.0 - A set of award-winning authoring tools to help you create interactive exercises, tests and quizzes. The exercises can be put on a Web page, or run as standalone programs at home or in the classroom. A great way to teach any subject - or just for fun.
EasyCert 70-219 Exam Simulator 002 - Pass your MCSE 70-219 exam with EasyCert 70-219 exam simulator, the most effective training software for the Microsoft certification exams.
