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Show HN: Browser-based interactive 3D Three-Body problem simulator

4 days ago
https://trisolarchaos.com/?pr=O_8(0.6)&n=3&s=5.0&so=0.00&im=rk4&dt=1.00e-4&rt=1.0e-6&at=1.0e-8&bs=0.15&sf=0&sv=0&cm=free&kt=1&st=1&tl=1500&cp=2.5208,1.5125,2.5208&ct=0.0000,0.0000,0.1670
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  • #astronomy
  • #simulation
  • #physics
  • The three-body problem is a famous challenge in classical physics, involving predicting the motion of three bodies under mutual gravitational attraction without a general closed-form solution.
  • The N-Body Simulator uses Newton's law of universal gravitation to model forces between bodies, including a softening parameter to prevent numerical singularities.
  • Supports multiple integration methods: Velocity Verlet for long-term energy conservation and RK4 for higher short-term accuracy.
  • Includes preset configurations of famous periodic three-body orbits like the Figure-8 choreography and Lagrange triangular configuration.
  • Features real-time 3D physics, interactive controls, and timeline playback for analyzing orbital behavior.
  • Energy conservation metrics are displayed, with total energy often negative, indicating a gravitationally bound system.
  • Built with Three.js for WebGL-accelerated graphics, tracking up to 10,000 frames of history for analysis.
  • Users can adjust parameters, share configurations, and provide feedback to improve the simulator.
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