A matrioshka brain[1][2] is a hypothetical megastructure of immense computational capacity powered by a Dyson sphere. It was proposed in 1997 by Robert J. Bradbury (1956–2011[3]). It is an example of a class-B stellar engine, employing the entire energy output of a star to drive computer systems.[4] This concept derives its name from the nesting Russian matryoshka dolls.[5] The concept was deployed by Bradbury in the anthology Year Million: Science at the Far Edge of Knowledge.[6][7]
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America has been called a melting pot, but it seems better to call it a mosaic, for in it each nation, people, or race which has come to its...
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Arizona's huge new dark sky observatory: See the construction progress Renderings & Floorplan The 22,000 square-foot IDSDC will ac...
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