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Dec 19, 2015 at 18:55 history protected Qmechanic
Dec 19, 2015 at 18:51 answer added Jan Obdržálek timeline score: 0
May 29, 2014 at 9:33 answer added bright magus timeline score: 0
May 29, 2014 at 0:13 answer added joseph f. johnson timeline score: 2
May 18, 2014 at 17:43 answer added BearMan timeline score: -1
May 18, 2014 at 14:10 answer added puru timeline score: 0
May 18, 2014 at 8:24 history edited doetoe CC BY-SA 3.0
extended the question
May 18, 2014 at 7:54 comment added Kenshin @Raskolnikov, correct.
May 18, 2014 at 7:48 comment added Raskolnikov @Mew: But you can postulate the existence of particles (tachyons) that are already faster than the speed of light and hence don't need to be accelerated. This is consistent with the Lorentz-transformations. However, it does indeed lead to the problem with the future being able to influence the past. It also has another problem of instability, in that it is possible to keep extracting energy out of those tachyonic particles.
May 18, 2014 at 7:40 comment added Kenshin I don't believe the propagation delay is an assumption in general relativity, but rather it falls out of the equations.
May 18, 2014 at 7:32 comment added doetoe @Mew: I am well aware that no massive particle can be accelerated to the speed of light and that massless particles can only travel at the speed of light, but how could you conclude for example that the propagation of forces (like gravitation) cannot be instantaneous (action at a distance)?
May 18, 2014 at 6:59 comment added Kenshin No it can be proven that no massive particle can be accelerated beyond than the speed of light using the theory of relativity. As speed increases, the inertia opposing a further increase in speed increases, such that as you approach c, you require more and more force to get faster. You will need infinite force to ever get to c.
May 18, 2014 at 6:53 history edited Bernhard CC BY-SA 3.0
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May 18, 2014 at 6:33 history asked doetoe CC BY-SA 3.0