Quote:
Originally Posted by CraigS
Ok Steven;
So, I'm on track with this now .. no problems ..
So, I guess, as Rob mentions, the Y photons experience more time dilation when compared with the X photons .. I would expect that this would impact their relative arrival times, perhaps to the extent of Y's photons not arriving at all (unlike as I originally hypothesised ?). If so, then that problem's solved.
The next issue is if nothing at all happens to the photon's energy (ie: it remains constant), then does this also imply that the energy density of the expanding obs. universe has dropped, due to the expansion of our hubble sphere, which has happened as photon Y makes its way (alongside photon X), to our scopes ?
Cheers
PS: Ned says .. 'yes' .. as per observations ! (I just read Ned ..).
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I wouldn't want to disagree with Ned.
Imagine if he appeared in Thunderblogs.
