so I've been struggling somewhat with rationalising this concept, so I'll explain my thinking and hopefully someone can point out the flaw.
My initial reading had been that, if an observer is moving towards a light source in the hopes of adding their speed to the perceived velocity of the incoming light, that same velocity will slow the observer's time by an equal amount - their measurement devices' slowing accounting for the difference.
But surely that would actually make the light appear to arrive much faster, less time having elapsed for the observer relative to, say, a second static observer.
Similarly, I have a hard time working out precisely how any time dilation effect can make the 'right' correction accounting for either approaching or retreating from a light source.
I really hate struggling so badly over a relatively (.....heh) simple principle, so I'd greatly appreciate your clarifications. If you're able to put it in similar terms to those I've used that would also help a great deal. Thanks.