 While the components of vectors and tensors are in general altered under Lorentz transformations, Lorentz scalars remain unchanged.A Lorentz scalar is not always immediately seen to be an invariant scalar in the mathematical sense, but the resulting scalar value is invariant under any basis transformation applied to the vector space, on which the considered theory is based.A simple Lorentz scalar in Minkowski spacetime is the "spacetime distance" ("length" of their difference) of two fixed events in spacetime.