The Speed Force was the extra-dimensional energy that once powered all of the Flash's superhuman abilities. It is not like gravity or any other fundamental electromagnetic phenomenon. It's origin is likely the same as most superhuman abilities found in the DC Universe, a byproduct of the mysterious omni-energy known as The Source/The Godwave.
- The Speed Force is a vaguely defined extra-dimensional energy force from which most, but not all, superspeed-powered heroes in the DC Comics universe draw their enhanced abilities. For example, the multiple heroes named the Flash (Jay Garrick, Barry Allen, Wally West, and Bart Allen), Johnny Quick, Jesse Quick/Liberty Belle, XS, the Tornado Twins, and Windrunner/Max Mercury all draw their powers from the Speed Force.
- The Speed Force is also seen as a physical space to which speedsters can travel. Max Mercury traveled through time as a result of his efforts to enter the Speed Force and ended up several decades into the future every time he made an attempt.
- Bart Allen could control the Speed Force and could "commune" with the spirits in the Speed Force through meditation. When speedsters die, they become one with the Speed Force, as it is an afterlife for them. Max Mercury's own spirit is trapped inside following his possession by The Rival.
The ability to access the Speed Force has been limited to only a few individuals in the DC Universe and when DC characters travel to the Marvel Universe, they are unable to access the Speed Force.
The Speed Force has most often been discovered or accessed by accident as in the hard-water radiation accident which gave the Golden Age Flash, Jay Garrick, his powers. (Pre-Crisis)
Barry Allen and Wally West acquired their powers from an accident in a laboratory (later retconned to be Barry traveling through time to give his powers to himself) (Pre-Crisis)
Bart Allen acquired his ability to access the Speed Force genetically, but had to be subjected to experimentation to prevent his power from hyper-accelerating him into old age.
Professor Zoom/The Reverse Flash was able to, using technology, recreate the ability to access the Speed Force in the distant future.
Others have had unique origins or specialized technologies or powers which gave them limited access to the Speed Force and the powers therein.
Please Note: The Speed Force concept has been altered, remixed, rehashed and rewritten over the thirty years it has been in use. It has not been clearly defined to exist in the DCnU, and if it does, its parameters have not been specified. All references are from the Pre-Crisis, Post-Crisis, and Zero Hour continuities. The DCnU Multiverse is not included.
