>On Fri, 12 Jun 1998, Ian Goddard wrote:
>
>> IAN: I understand what you. But the photon
>> reaches you at the same instant it was emitted
>> because that instant travels at 186,000 mps.
>
>Only from the photon's reference frame; not from my own.
>
>> Your "instant" is the same across the universe.
>> If we say that right now a photon is emitted
>> from a point 20 ly away, we are applying a "now"
>> that is uniform across the universe, and which
>> is universal time. If we say that the instant
>> travels with the photon, we say that when the
>> photon strikes us, the "now" of its emission
>> has reached us. Time travels at the SOL.
>
>Yes, but the idea of "old photons" is not speaking to the point of
>universal time, but only with respect to t=0 *in my reference frame*.
IAN: Yes, that speaks right to the point. I
keep shifting into the photonic frame o ref.
It's actually an unholistic thing to do --
got to keep All frames of reference in mind.
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VISIT IAN WILLIAMS GODDARD ------> http://www.Ian.Goddard.net
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