Another implication of Maxwell’s work was that electrically charged bodies and magnets separated by large distances do not interact with one another instantaneously but do so by means of the electromagnetic field, which spreads out from one to another body at the speed of light. Jiggle an electric charge at one location, and it is only when the resulting electromagnetic wave reaches a remote charge that the latter will start oscillating in concert. This was utterly different from the mechanical picture of Newton where such action occurs instantaneously.
Close, Frank (). Nothing : A Very Short Introduction.Oxford, , GBR: OUP Oxford, 2009. p 56.http://site.ebrary.com/lib/britishcouncilonline/Doc?id=10362196&ppg=71
For Einstein the contractions are an intrinsic property of space itself. Distances and time intervals as recorded by observers at different speeds take on different measures; what is space for one observer is a mix of space and time for another.
Close, Frank (). Nothing : A Very Short Introduction.
Oxford, , GBR: OUP Oxford, 2009. p 64.