- #1

geordief

- 215

- 48

##c=\sqrt{\frac{1}{μ _0.ε _0}}##

The reason I would like a bit of help is that I understand that the value of c as deduced from Maxwell's equations is independent of any frame of reference.

I can see that this is the case from the above equation involving the permittivity and the permeability of the vacuum but how is this formula arrived at and where in the mathematics does it become apparent that a value for the speed of the radiation is being used without any reference to any particular reference frame (and so invariant,if I understand correctly)?

I am anticipating that the mathematics may be hard for me to attempt to undertake but would like to be shown what this mathematics looks like and if there is perhaps any discussion of it elsewhere that might help me understand it in as detailed a way as possible (I do have

*some*understanding of Calculus and differential equations ...)