Reading this result: With restitution 1 every bounce is perfectly elastic, so the total kinetic energy of all 12 balls stays constant forever — a 2D model of an ideal gas.
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How it works
Every collision is resolved with impulse-based physics that conserves momentum, and (at restitution 1) kinetic energy. It's the core of billiards, particle physics demos, and game engines — and a clean way to see conservation laws hold in real time.
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