🌐EnglishEnglishDeutschРусский한국어中文日本語EntityQ4925027· pop 7· linked from 121 articlesBlandford–Znajek processmechanism for the extraction of energy from a rotating black holeAvailable in 7 languagesDeutsch中文РусскийBulgarianUkrainian한국어via Wikidata sitelinks · CC0Connectionsaccretion discEntitystellar populationEntityCategoriesBlack holesQuasars