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Penrose Process — Extracting Energy from a Spinning Black Hole (2D)

A 2D cross-section companion to the 3D Kerr black hole simulator: drop a particle into the ergosphere, split it in two, and watch one fragment escape with more energy than it fell in with, extracting rotational energy from the hole.

Special Relativity2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version
2d-physics-ext-topic-51 ↗ Open standalone

A rotating (Kerr) black hole carries a reservoir of rotational energy outside its event horizon, in a region called the ergosphere where spacetime itself is dragged along with the hole's spin. This 2D side-on cross-section lets you drop particles into that region and split them in two: tune the black hole's spin, the entry angle, and how close the split comes to the theoretical optimum, then launch a particle and watch one fragment plunge in with negative energy while the other escapes carrying away more energy than went in — the Penrose process. Live readouts track the hole's mass and spin as they are shaved down by each successful extraction, alongside the cumulative energy harvested and the theoretical maximum efficiency (η_max ≈ 29.3% for a maximally-spinning hole) for the current configuration.

⚙ Under the hood

A 2D side-on cross-section companion to the 3D Kerr black hole simulator: drop a particle into the ergosphere, split it in two, and watch one fragment escape with more energy than it fell in with, extracting rotational energy from the hole.

astrophysicsblack-holerelativitykerrergospherepenrose-process2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install

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