Gravitation 4.0 This is an Educational Game Mactivity's CD-ROM nr 10 advice: This application did run on a b/w 68030 processor under System 7.1. It was also tested on a big ColorScreen of a PowerMacintosh running System 7.1.2. The game was also tested on a Quadra with 68040 processor and a 13 inch Color Screen and System 7.1 by Mactivity. Gravitation Ltd. is a graphic, two dimensional orbital simulation. Users can enter custom designed solar systems or run previously created ones. Systems can be views at varying zoom levels, recorded and played back at high speed, and edited via the graphic solar system editor. A Gravity Primer Gravity is the force of attraction between any two objects. The strength of that force depends on the distance between the two objects, the mass of each object, and a gravity constant. This force can be represented by the formula Force = (g * M1 * M2)/D2 where g= gravity constant, M1 is the mass of the first object, M2 is the mass of the second object, and D is the distance between them. Accordingly, as the two objects come closer the gravitational pull increases.Also, as the mass of either or both objects increases, the gravitational pull will increase. How much a given gravitational pull affects an object depends on that object's mass. A small pull on a heavy object will cause very little change in the object's speed and position (a small acceleration). A large pull on a light object will cause a strong acceleration. Back to the Computer Games Index