Using centrifugal force to simulate gravity is nothing that wouldn't have occurred to people long before making it into space. It's something that you realise when you reach the level of technology to build roundabouts and carousels, not interstellar spaceships!
Whereas the artificial gravity the Minbari (and others) have is a wholly different beast, presumably derived from some unknown future branch of physics.
Whereas the artificial gravity the Minbari (and others) have is a wholly different beast, presumably derived from some unknown future branch of physics.