I just proved it: I ruined Spectral Relativity.

[Kojiami]

How, you ask? Well, i figured out how to do FTL communication. It's not realistic at the moment (Since the power needed for it would just be too great.). The idea is to use powerfull gravity, and make fast fluctuations in mass that causes the gravity, and measure the fluctuations in gravity where you're sending the message.

 

 

Of course, do directly change the mass of something, you need to get rid of matter, which is impossible. But there is a backdoor around this: Antimater. Bombard the high-density matter with antimatter, causing it to anihilate (Meaning it is turned into energy, changing the mass.). The technical problem here is creating enough antimatter. If you would put all world resources into making antimatter, you'd end up with a couple million years to create one gram (Not to mention, it has to be stored in a place with absolutly no matter, since it anihilates otherwise.)

 

 

Bombarding high-density matter with antimatter will reduce it's total mass, changing it's gravitational field. Since gravitation is not speed bound, the fluctuations will be measurable anywhere without the limitation of time. Example:

 

 

At proxima Centauri (Closest star to the sun, 4 lightyears away), you set up a gravity detecting machine, and calibrate it to these mass fluctuations. Next, you bombard a high-density matter with antimatter, changing it's gravity field. The machine at proxima centauri detects this instantly (gravitation changes are instant), and therefore reads a "message" of gravitation pulses without being bound by time. You could do this at any distance, you could even use it to communicate between superclusters... Of course, this doesn't solve the problem of actually transporting matter faster then light.. But i'm sure this could be useful in the far future. Comments?

[swansont]

Comments?

 

Gravity propagates at the speed of light. The relevant term in GR is the energy density, not the mass, so annihilation won't change the gravity anyway, AFAIK.

 

Thanks for playing.

 

And what the heck is spectral relativity?

[GutZ]

Einstein is rolling in his grave.

[Kojiami]

Umm, no. Gravity fields change outside speed limitations, and if you can disperse total mass energy (done by anihilating it), the gravity field will change. Since the energy gained by anihilation is easily dispersable at at least 5-10% of C, it's perfectly possible to anihilate matter.

[Klaynos]

Umm, no. Gravity fields change outside speed limitations, and if you can disperse total mass energy (done by anihilating it), the gravity field will change. Since the energy gained by anihilation is easily dispersable at at least 5-10% of C, it's perfectly possible to anihilate matter.

 

Wrong, gravity propergates at c. If you wish to dissagree cite some evidence.

[Kojiami]

A "True" gravity speed has never been proven, check wikipedia. The gravity fields "Dent" in spacetime at C. Only the "full" power of the gravity dent is reached at value C, but the effects are instantly noticable. Say, if i made a gravity field here, it would be noticable at an infinitely small force over an infinitely small time.

[timo]

In GR, mass is not the sole source of gravity. Its role is (partly) replaced by energy, which is conserved in particle annihilation.

[swansont]

A "True" gravity speed has never been proven, check wikipedia.

 

Klaynos asked you to cite evidence, not wikipedia.

[Kojiami]

When a comet passed jupiter, it's gravitational effects (however small on earth) were noticed, but it's view through a telescope was delayed because light travels at C. By calculations, the comet's vision delay was noticable, yet there was no gravitational delay.

 

 

As for the conserved energy, energy can easily go at speeds that near C. If the energy would be scattered fast enough, the gravity fluctuation would still happen.

[CPL.Luke]

^do you have a source for that information, what comet, and who did the observations?

 

http://en.wikipedia.org/wiki/Speed_of_gravity

 

look at the bottom of the page for a discussion of a new experimental result which measured te speed of gravity as being between .8 and 1.2 c

 

there is no mention of your experiment.

 

there is also a discussion about how gravitomagnetism effectively cancels out any effects of a finite speed of gravity in the domain of our solar system.