# Minkowski space

### From Conservapedia

**Minkowski space** is 4-dimensional Euclidean space (i.e., the set of points (*x*,*y*,*z*,*t*)) together with the metric:

*c*^{2}*d**t*^{2} − *d**x*^{2} − *d**y*^{2} − *d**z*^{2}

A vector *v* in Minkowski space is said to be time-like if | | *v* | | ^{2} > 0, light-like if | | *v* | | ^{2} = 0 and space-like if | | *v* | | ^{2} < 0. The isometries of Minkowski space are the Lorentz transformations.