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's accretion disk, where infalling matter is accelerated to close to the speed of light, triggering the release of energy in multiple wavelengths.The latest comes from Harvard Professor Avi Loeb, who proposed in a recent paper how advanced civilizations could rely on a"The way this black hole would illuminate the planet it orbits, he argues, would constitute a potential technosignature for future SETI surveys.
"This black hole system is the most efficient engine that I ever thought about. The fuel is converted to energy with the perfect efficiency of 100%, because the mass falling into the black hole is ultimately coming out as Hawking radiation. "The other advantage of this black hole engine is that it can use any form of matter as fuel. It could be trash. There is no better way to recycle trash than convert it into clean energy with 100% efficiency."
"This is the big challenge. The good news is that it is much easier to produce such a black hole than a baby universe. But any production line of a 10g black hole requires compressing matter or radiation to a mass density that is 60 orders of magnitude above the density of solid iron.
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