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A rotating black hole contains an enormous amount of energy, which an advanced civilization could hope to harness with up to 29% efficiency.
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A rotating black hole contains an enormous amount of energy, which an advanced civilization could hope to harness with up to 29% efficiency. There are two main mechanisms: the Penrose Process, which involves sending pairs of particles into a black hole's ergosphere and extracting one particle that gets spit out, and the Blandford-Znajek Mechanism, which extracts energy from a black hole's magnetic field as it interacts with its environment.
Rotating black holes: The most fantastic source of energy in the universe
Abstract page for arXiv paper 2502.15784: Rotating black holes: The most fantastic source of energy in the universe
arXiv.org (arxiv.org)
