Null-T

Zero-transport (often Zero-t or null-T) is a sort of teleportation used in the Noon Universe. It was developed in the 2150s and widely applied on Earth in the second half of 22nd century. Zero-t is based on the so-called puncture of the Riemannian fold and actually goes against everything proclaimed by traditional theories of absolute space, time-space continuum and kappa-space.In real life it is very simple: there are two zero-t booths, a person steps into one of them, dials the code of the other one and in an instant he or she is in the second cabin, no matter how large the distance between them (in 2177, for example, progressors used zero-t to travel between Earth and Giganda). It isn't mentioned anywhere in the books how the Wave problem, that devastated Rainbow in 2156, was solved. See Far Rainbow for more info.