Re: Question about light clock and derivation of time dilation


"YBM" <ybmess@xxxxxxxx> wrote in message
news:42d2d69e$0$4036$636a15ce@xxxxxxxxxxxxxxx
> Androcles a écrit :
>>>So there is or there is not a "yesterday" ?
>>
>> There used to be one, but it is over.
>
> So the word "yesterday" as a meaning, as well as
> the expression "yesterday, at noon on Princes street",
> as well as the space-time location (1,0,3,-1).
>
>>>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 ?
>>
>> How can you confuse an event in the past with a vector?
>
> Technically speaking, space-time can be represented by
> an affine space, not a vectorial one :
>
> http://mathworld.wolfram.com/AffineSpace.html

How can you confuse an event in the past with a vector?



>
> Anyway it doesn't matter much, since by choosing a
> convenient origin this space is isomorphic to a
> vectorial one.
>
>> It is even worse than confusing
>>
>>>closing velocity and relative velocity (what you
>>>do for years).
>>
>> What's the difference,
>
> You should know.

I do. There is none.
I see that you are an ignorant flaming snipper, too. Get it from Al and
Dinky, do you?
*** off.

Androcles.


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