🌐EnglishEnglishEspañolFrançaisItalianoPolskiPortuguêsالعربية한국어中文日本語EntityQ3951418· pop 13· linked from 116 articlesLorentz scalarquantity in the theory of relativity which is invariant under a Lorentz transformationConnectionsopticsEntityMinkowski spacetimeEntityCategoriesConcepts in physicsHendrik LorentzMinkowski spacetimeScalarsTheory of relativity