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Arjun AntennaTheory.com Newbie
Joined: 31 Jan 2014 Posts: 1 Location: Kolkata

Posted: Fri Jan 31, 2014 10:18 pm Post subject: speed of light 


As per Maxwell's equations the speed of light is
c = 1/sqr(permeability X permittivity)
I find that both permeability and permittivity have pi in their calculations. Since spacetime is not flat, the value of pi would change due to the curvature of space near large masses. Does this mean that the speed of light would also be altered by the curvature of spacetime? 

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bigSteve Antenna Wizard
Joined: 14 Mar 2009 Posts: 265

Posted: Sun Feb 02, 2014 7:37 pm Post subject: 


I think that is a bit of a stretch to argue that:
(1) pi is in the equation, therefore the physical constant is a function of the area of a circle
(2) relativity has length contraction, therefore circles have different areas, therefore pi should change
I'm not sure you can really argue from either of those two points 

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