Gravitational Interaction Simulator

This Demonstration lets you simulate several systems acted upon by Newtonian gravitation. You can start or stop a simulation with the "start" and "stop" buttons and use the "presets" drop-down menu to load predefined situations. Planets can be created by clicking their positions and dragging to giving them initial velocities. The mass of created planets can be controlled with the "" slider. Planets are assumed to undergo an inelastic collision when they touch. The mass of a planet is represented by color and radius. The gravitational constant is set equal to 0.00002 for convenience.


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


Snapshot 1: one stage in the "spiral" preset
Snapshot 2: one stage in the "moon" preset
Snapshot 3: a situation created from scratch in "sandbox" mode
This simulator was inspired by a Flash-based simulator at http://www.nowykurier.com/toys/gravity/gravity.html.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2017 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+