Watch Time Trip with Michio Kaku (2003) Documentary Online


In 1963, Roy Kerr, a New Zealand mathematician, found a solution for the equations of Einstein for a rotating black hole, which had bizarre properties. The black hole would not collapse to a point but into a spinning ring.

The ring (of Neutrons) would be circulating so rapidly that centrifugal force would keep the ring from collapsing under gravity.

The ring, in turn, acts like the Looking Glass of Alice. Anyone walking through the ring would not die, but could pass through the ring into an alternate universe. Since then, hundreds of other wormhole solutions have been found to the equations of Einstein.

These wormholes connect not only two regions of space (hence the name) but also two regions of time as well. In principle, they can be used as time machines. (Source)