Re: Question about light clock and derivation of time dilation

In sci.physics.relativity, YBM
<ybmess@xxxxxxxx>
wrote
on Sun, 10 Jul 2005 23:36:24 +0200
<42d1946d$0$12926$636a15ce@xxxxxxxxxxxx>:
> Androcles a écrit :
>> "YBM" <ybmess@xxxxxxxx> wrote in message
>> news:42d16eed$0$12778$636a15ce@xxxxxxxxxxxxxxx
>>
>>>Androcles a écrit :
>>>
>>>>Of course I haven't, there is no t = -1.
>>>
>>>As well as there is no word spelled "y e s
>>>t e r d a y" in english ?
>>
>>
>> Go back to yesterday then,
>
> So there is or there is not a "yesterday" ?

Yesterday was and will never be, today always is,
and tomorrow never comes.

>
> How could you confuse the trivial fact of
> talking about events taking place before
> an arbitrary origin of a clock and traveling
> to the past ? It is even worse than confusing
> closing velocity and relative velocity (what you
> do for years).
>

Coordinate don't really exist, either -- they're just
convenient ways of organizing the observations. :-)

--
#191, ewill3@xxxxxxxxxxxxx
It's still legal to go .sigless.
.

Relevant Pages