Welcome to Gravitysimulator

What is the Gravity?

Gravity is a program to simulate the path of move for bodies (i.e. objects with mass) altered by the gravity drive between each other, i.e. a gravity simulator.

By using this program, gravitational attraction may be better learned. From the simplest orbit to complicated galaxy crashes, there is a wide variety of motions by gravity. On simulating the motion of two bodies, it is conspicuous to model the elliptic orbit around each other’s mass center of the Sun and the Earth or the path of a rocket as leaving the Earth with the speed of escape or the see-saw maneuver of a space probe, when gaining speed (kinetic energy) from a planet. By modeling multiple bodies, you may observe the perturbance of planets interfering with each other, ejecting a body from the system or when a planet capturing a body that arrives from the outside and making it a satellite of its own.

See further the section What is it used for in the HTML version of the User Manual.

Use it for

As a fundamental physical phenomenon, gravity is on curriculum at elementary and secondary schools and at vocational higher schools, thus it is an aid for both pupils and teachers, when they can see orbital paths in addition to imaging them. Sitting before the computer, a process that lasts effectively for years may take place in a few seconds, the Kepler's and Newton's law are understood in a shorter time.

Gravity is proposed to schools, teachers, students, undergraduates in physics and anyone interested in natural sciences, physics or to those just like spectacular programs.

Key features

• The number of bodies that can be simulated at the same time is (theoretically) not limited. (practically it can be maximum a few thousand, the movement of a few hundred can be seen as continuous on the screen)
• The bodies can fall under 16 different groups that have a common center of mass
• Advanced editing possibilities:
  • Popup menus (background, body, selected bodies)
  • Modification of parameters of the bodies by the mouse (position, velocity vector, size, other)
  • Uniformly modification of selected bodies by the mouse (position, velocity vector, size, deleting, zoom, other)
  • Modification of displaying order (priority) of the bodies
  • Clipboard operations (cut, copy and paste, between two different applications too)
  • Continuous operations (the operations are not limited by the size of the screen)
• Extreme events of the bodies (collision, to close proximity to each other, exceeding velocity) can be screened out
• Trail (with the size of the body or a pixel, even the same color)
• Velocity and force vectors (with trail or not, even the same color)
• Modification of the virtual size of the vectors
• Modification of view and zoom by the mouse, even under simulation
• Modification all system parameters under simulation
• Automating restarting of the simulation
• Creation of the bodies by the mouse
• Creation of several bodies at the same time (in the form of ellipsoid or text)
• Search of bodies and their center of mass
• Saving the data of the simulation into a file
• Export and import of the system data

System Requirements

The system requirement to run this program is:

• A personal computer with the operating system Windows NT as a minimum

Gravity is a multithreaded application. This is why a 32-bit NT-based operating system is required to run it. This program version running on Windows XP benefits from Visual Styles and 32-bit graphical objects.

Note: This software designed and written on Windows XP.

Price

This shareware (demo) program is available in three versions:

To get free version or purchase full versions of the Gravity, go download.

Gravity is Copyright © 2004, Uranisoft.