Toys & Experiments
Island Three — O'Neill Cylinder
A physically based, WebGPU-accelerated simulation of an O'Neill cylinder space habitat.
Playable

Description
An interactive WebGPU simulation of Gerard K. O'Neill's space habitat, featuring a 32 km long spinning cylinder at the Earth–Moon L5 point. It models artificial gravity through spin and sunlight via mirrors to visualize the scales and physics of the habitat interior.
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