So, point of singularity, the black hole, wormholes, and parallel universes, yes, that's what I'll be blah-ing on about today. I admit, half the reason I went and read about the topic was because I was re-watching FMA and a few episodes of Farscape, and the whole concept of parallel worlds, and the use of black holes as a point of travel to these worlds became a bit uh, obsessive. Add the fact that Ed knew that the only way to get home was through space; well you have one fangirl who just want to know how it would work in theory if not practice.



Einstein, based on his gravitation theory, created a set of formulas known collectively as the Einstein Field Equations (or the General Theory of Relativity). The equations describe how an object curves space and how the curvature, in turn, stretches or squeezes matter in three spatial directions: north-south, east-west and up-down.

It sounds all nice in theory but there are a few problems when applying it, the equations are nonlinear and the sheer number of terms is impossible.

Relating this back to black holes. Karl Schwarzschild, during the First World War, applied Einstein's work to the gravitational fields of stars. Schwarzschild simplified the problem by considering a perfectly spherical star at rest, under the assumption that the star's interior had no effects on the star. He predicted the star's space-time curvature, and the solution used became known as the Schwarzschild geometry. Later, Schwarzschild predicted the space-time curvature inside the star. In effect, Schwarzschild was describing a singularity; it is a region of infinite space-time curvature that is said to lie within s black hole.

A black hole is formed when a star collapses on itself, and the intense gravitational field allows nothing, including light, to escape. In effect, the star disappears from the visible universe and forms a black hole.

Einstein and Rosen postulated a black hole is symmetrical to a white hole. The black hole/white hole pair would form a wormhole or vortex (FARSCAPE, John Crichton and the damn memories). The exact mathematics of this is worked out by the complete Schwarzschild geometry. A white hole is a black hole running backwards in time. A black holes swallow things, so the white holes spit them out (I am cutting a lots of things out, a lots.)

If this were the case, then any matter swallowed by the black hole would be quickly spat out by the white hole, in an unknown location. The location can be a distant point in the extreme part of the universe, in which case the wormhole would act as a shortcut through space and time. On the other hand, you can come out of the other side to arrive in a parallel universe, in which case it would act as a bridge between the different dimensions.

Since I want to talk about parallel universes, the second hypothesis it is ^_^, besides being a cool idea the latter hypothesis is also able explain the total absence of antimatter in the known universe. According to the principle of symmetry (Law of Conservation and so forth, but if there’s no equivalent trade in FMA then…), there must be equal amounts of matter and antimatter. However, the latter has not been discovered though it has been artificially produced in particle accelerators, the implications of being able to create antimatter in a world of matter to the whole parallel worlds hypothesis I don’t understand. Anyways, the existence of parallel universes could possibly explain the lack of antimatter in our world. In parallel dimensions, then, there could be objects similar to the planets and stars we are familiar with in our own, but constructed of antimatter. Don’t ask me I’m just trying to make sense of it.

Having said all of this, there’s one slight problem, white holes cannot exist, since they violate the second law of thermodynamics. The way the specialists get around this is by stating that the General Relativity is time symmetric. It does not know about the second law of thermodynamics, and it does not know about which way cause and effect go. The bottom line, there’s a lots of theorizing and even though over 70% of the physicists believe in parallel universes there’s just no prove (but I WANT to believe!)

Anyways, if Ed was thinking of using a wormhole to get home he’ll need to somehow find the exact location of his world before he enters a wormhole (this of course means he’ll first need to get into space.) Then again I get the distinct impression that there is no other universes beside Ed’s the one he’s stuck in. What I have talked about is the bare bones; there are pages after pages of formulas and extensive explanations. Go and read them yourself, it is really interesting (even the mathematics of the whole thing is interesting.)