So these extra dimensions are like the three spatial dimensions that we know, in that they're all orthogonal to each other? If that's the case, then what's the advantage, for the purposes of this project, of traveling along one of these dimensions?
To simplify things down by eliminating a dimension, let's picture a table top as representing the universe, and I want to go from one point on top of the table to another. Moving in normal space, that is, moving along the surface of the table, I'm limited by the speed of light. But if I use this magnetic gizmo that they're devising which enables me to punch through to an orthogonal dimension and go "up", I'm not changing my position over the table, so that doesn't really help me much.
Now are they saying that by using this device, I don't limit myself to the up/down dimension, but can go anywhere at all above the surface of the table? Or would I have to go up some distance, and then activate the thing again in order to bang left, and then do it again to go down?
Or do I have the totally wrong conception of what these extra dimensions are like?
But this is very misleading. Above the table, you have access to new fundamental interactions.
It is regularly said, that there are four fundamental forces, with particles interacting through them via carrier particles:
1. The strong nuclear force, carried by gluons
2. The electromagnetic force, carried by photons
3. The weak nuclear force, carried by Z and W bosons
4. The gravitational force, carried by gravitons.
And these can all be unified (with #4 being the trickiest, and we aren't quite there yet, IMO). Now, Heim theory predicts that there are also 2 other forces, with 2 new charge carriers:
5. quintons (I think! I forget the name, it is something like that) that carry a very weak REPULSIVE gravity-like force.
6. gravito-photons, which can act to convert an electromagnetic field into a (new) gravitational field, which acts in addition to the usual one.
So, my understanding of all this, which is probably flawed in some way since I am not active in this area, is that in order to access the other dimensions, you must produce gravito-photon and quinton excitations (via an electromagnetic field) - and these excitations result in a change in the gravitational field in the region of electromagnetic field generation. The theory seems to have no intrinsic limitation on the speed of light, or on the magnitude of the above field effect.
And this should be read with 2 things in mind. Again, this is not my area, that is number one. Number two, though this is not quack science (there are lots of quacks who like to cite it though, haha), it doesn't rest on the firmest theoretical ground. Peer review has been difficult (not that it would be definitive), since Heim produced most of his results outside of academia. He was involved in an accident which cost him his sight, his hearing, and the use of both his hands, AFTER which he did his research - the work is in German, uses nonstandard notation, involves the use of a new type of calculus (selector calculus - similar to finite element methods), and is full of small errors (he chose a shoddy publishing company). It looks honest, it looks methodical, and it looks like properly done science. It could still be all wrong though.