Thursday, November 5, 2015

reference frames - Can you tell your absolute speed in space?


Normally in relativity your speed can only be known relative to another object,


given that as one approaches light speed more energy is required to accelerate faster, based on the energy consumption profile you would be able to calculate at what % of the speed of light you were going?


apart from being a useful 'speedometer' i thought it interesting that one of the effects of the light speed barrier is you can determine your absolute speed relative to yourself, your proper speed i guess it would be called if this speed barrier did not exist then you would have no way to know your speed



now since you know your own speed, you also know the absolute speed of any other object you encounter from the relative difference


following on from this, if you knew your speed you could slow your ship down by the exact speed you knew yourself to be going and be truly at rest, with respect to the reference frame of the universe


my question is am i right? it seems counter intuitive to derive seeming absolutes in in a relativistic universe




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