In special relativity, Newtonian behaviour can in most cases be obtained by performing the limit v → → 0 . In this limit, the often appearing gamma factor becomes 1 γ γ = 1 1 − − v 2 / c 2 → → 1 and the Lorentz transformations between reference frames turn into Galileo transformations t ′ = γ γ ( t − − v / c 2 x ) → → t ′ = t x ′ = γ γ ( x − − v t ) → → x ′ = x − − v t