let's make this basic shall we??
think of the Tardis concept as a giant cosmic Hamsterball..I know, I know it sounds silly.. but wait there is more..
okay so you have this hamsterball ( a plastic ball that a hamster can roll around your flat safely in) inside the hamster ball is the hamster.. which is the tardis time travel machine or time travel capsule as it is commonly referred to..
so this TTC is the hamster..it's little feet are what make the machine/ball move..
now, let's say that when the hamster moves and runs the ball moves around him, which in tern gains traction and moves him around the living room floor..the tardis does the same, only the ball moves around the ship which is actually warping space and thus the machine moves within that field..now this travel is very slow..compared to being in the time vortex..
so now, lets take our cosmic hamster ball and place it on a super speed set of train tracks that run inside the ball.. these tracks represent the vortex..so when the hamster moves his ball, the ball is connceted to the train tracks and thus moves extremely fast even though the hamster is running at the same speed it did on the carpet floor previously..
now the Tardis is basically the same in principle.. the warp drive engines modify the space around the outside of the capsule and move the box about the cosmos, even allowing the ship to defy gravity and fly inside the earth's atmosphere..much like a starship.. only the power and warp field eminating from the machine is coming from a folded pocket of space, or an artificially generated relative dimension..
what is a relative dimension?
well in a nutshell, if you took 2 black holes, and could control them, and then took a section of space, bent it around into a bubble, and set the opening within the bubble to a mapped entry way in normal space, you would then have a relative dimension.. artificially generated by a copy of the eye of harmony, which is a nucleus of a black hole.. or singularity..this bubble is part space, and then also is not in normal space..it is a small opening that is tied to a pocket dimension..being relative to our reality is because it is tied to the interface doorway..and exists as the same object..
then inside this dimension you grow from living metal (validium) a massive time travel ship, which sports anti gravity generators and warp engines, all surrounded by a shell with the portal set within the ship..that is a tardis.
the ship's engines are also tied via a space time event to the universe sized wormhole known as the time vortex..which are the train tacks the ship can run on..in normal space the warp engines are used, while in the vortex both the warp engines and the reverse gravitational generators are used to move the ship around..
what is the time vortex and how can you traverse time with it?
this is pretty easy to describe.. basically time and space are tied together.. the faster you accelerate from the earth, the slower time gets for you, and the earth keeps on revolving, effectively you travel into the future, if you were to turn around get back to earth you would notice hundreds of years had passed, though only 10 or so for you..
now imagine you accelerate past the earth super fast, then jump immediately into a wormhole, and end up back at the earth at the exact time in the future you desired.. you just tardis traveled into the future!
now time traveling into the past is a bit different.. you see, the universe is so vast, so you would have to go to the other side first..from there the light just hitting you is from earth's distant past.. so jumping into the time vortex, and zooming to the earth to arrive just as that light was leaving, is how you can travel backwards in time.. this is done by flight through the time vortex, and effectively jumping lanes to get back to earth faster then time and light are accelerating away..
most of this can be explained by watching the series, "into the wormhole hosted by morgan freeman," the episode entitled is time travel possible?
watch it, and learn..basically the time lords figured out that the universe is stationary.. so in order to make time travel possible, you would need to have a worm hole that looped around and around like a "vortex" from one end of the universe to the other..
this was done using a probe and a wormhole held open by the eye of harmony, and flooded with dark matter to keep it open.. the energy cost was sooo great that the time tunnel was only big enoough for a small ship to fly in.. but it would take massive engines to generate the speeds necessary for travel within the tunnel.. hence the invention of the tardis... massive ship, and engines in a small box, able to traverse the time vortex safely..
what is the vortex manipulator? basically it is a teleportation system invented by the time agency, a human based time travel organization from the 51st century.. their wrist machines could (using massive teleportation hubs built around the universe with automated subspace relay stations) teleport you through the vortex by manipulating it's streams on a quantum level.. and leaping you across.. basically like a bunch of tightly wound strings pulled together, you get attached and flung to the other end..this is why the doctor calls it a crude way to travel..










