🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPortuguêsTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ616172· pop 18· linked from 171 articlesPenrose processtheorical process wherein energy can be extracted from a rotating black holeAvailable in 18 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaCatalanConnectionsKerr–Newman metricEntitystellar populationEntityCategoriesBlack holesEnergy sourcesHarv and Sfn no-target errorsHypothetical technologyRoger Penrose