Insight for: Show HN: Gravity – interactive solar-system simulator, from Newton to Einstein

Gravity, an interactive solar-system simulator.

Analyzed: Jun 9, 2026

This project, while presented as a personal educational endeavor, highlights the enduring demand for interactive learning tools in STEM. Its focus on explaining fundamental physics concepts, rather than just displaying simulations, addresses a common educational gap. The client-side, offline functionality built with modern web technologies (TypeScript, Three.js) demonstrates the power of accessible, high-performance browser applications for complex visualizations. While not a direct B2B SaaS, its methodology could inform educational SaaS platforms or interactive documentation for scientific software. The explicit mention of 'self-education' and 'never clearly explained in school' points to a market need for supplementary, engaging learning experiences that traditional curricula often fail to provide.

solar-system simulator Newton Einstein guided tour two bodies equal/opposite force inertia orbit is falling and continuously missing cosmic velocities gravity assists curved spacetime rubber-sheet well real radius/mass J2000 orbital elements Kepler's equation N-body mode symplectic leapfrog energy drift true scale log-remapped visual scale real AU TypeScript Three.js Vite client-side no backend works offline procedurally generated textures value-noise

Hacker News Post

Parent Entity

Show HN: Gravity – interactive solar-system simulator, from Newton to Einstein

Score: 58