Timeline for Is it possible to travel faster than the speed of light under extreme warping of spacetime?
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 29, 2016 at 19:48 | vote | accept | fonix | ||
| Feb 29, 2016 at 19:44 | vote | accept | fonix | ||
| Feb 29, 2016 at 19:47 | |||||
| Feb 29, 2016 at 9:42 | answer | added | OTH | timeline score: 1 | |
| Feb 24, 2016 at 23:56 | comment | added | fonix | So by manipulating spacetime in such a way, negative mass can be created? So I guess the final solution would be down to the theoretical velocity of spacetime itself opposed to the travelling body. That is assuming that spacetime can be altered in such a way... | |
| Feb 24, 2016 at 23:50 | comment | added | Peter Diehr | For an interesting application of the warping of spacetime in order to travel faster than light, search for "Alcubierre warp drive". Alcubierre found solutions to the Einstein field equations which support FTL, but nobody has found a way to physically obtain those solutions. | |
| Feb 24, 2016 at 23:44 | comment | added | CuriousOne | The local speed of light is not violated in inflation models, either, and inflation is not being assumed as happening in a matter free universe. Quite the contrary. A mental model for inflation that may work for you is that of a phase transition, which can also happen faster than the speed of sound in the medium. | |
| Feb 24, 2016 at 23:40 | comment | added | fonix | I've never liked the term empty-matter, however it's the only explanation I've been given to explain how the universe could expand at a speed faster than light during inflation. I suppose it's matter without content, although that alone seems like an impossibility considering that something cannot be composed from nothing, but I guess that's moving towards the realms of dark energy and such. Either way, thanks for the comment! | |
| Feb 24, 2016 at 23:30 | comment | added | CuriousOne | The speed of light is a local quantity. I don't know what you mean by "classed as empty-matter" means to you. Such an expression is not being used in physics. Photons are the quanta of the electromagnetic field. How an electromagnetic field at the quantum level behaves near or at an event horizon is not known. We can speculate to some extent and have, but the exact dynamic equations of motion of this system are unknown. "We don't know" is a fair and exact statement at this moment, however, nobody expects there to be a superluminal effect in there. | |
| Feb 24, 2016 at 22:56 | review | First posts | |||
| Feb 25, 2016 at 0:53 | |||||
| Feb 24, 2016 at 22:50 | history | asked | fonix | CC BY-SA 3.0 |