Gravitation simulator

System Requirements:
Mac OS X 10.5
Snow Leopard / Intel compatible

Uncrippled shareware

US $14

Link 1

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Cavendish is a robust and easy to use visualization tool for the N-body problem. The first program of its kind for Mac OS X, it has an intuitive interface, beautiful graphics and an accurate and fast core physics engine. Cavendish is named for Henry Cavendish (1731 - 1810) who used a torsion balance to make the first accurate measurement of the universal gravitational constant.

Cavendish simulates gravitation and accurately models stable planetary orbits, gravity slingshots, solar systems, asteroid belts, galactic collisions, or any other world you can imagine.

Features include:
- 3D simulation and visualization via OpenGL
- Accurate gravitation and collision dynamics
- Human-readable XML data files
- True support for an infinite number of bodies
- Export to tab-delimited data for later analysis
- Automatic tracking of bodies
- Complete control over simulations: over 45 different customizable parameters
- Wicked fast performance
- Easy to use system design tool

Cavendish is distributed in an uncrippled form. In the spirit of shareware, your download will not expire after a certain period of time. Please download the program and see if it meets your needs. If it does, please support shareware and purchase a registration code!

Think gravitation looks nifty? Try Cavendish Screensaver!

Sample Screenshots
(click for larger version)