🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسی한국어中文日本語EntityQ944095· pop 29· linked from 497 articlesKaluza–Klein theoryfield theory on a spacetime with small, compact extra dimensions beyond the large observed dimensionsAvailable in 29 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaConnectionsEinstein field equationsEntityhistory of string theoryEntityCategoriesParticle physicsPhysical cosmologyPhysics beyond the Standard ModelString theoryTheories of gravity