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From: hitlong@yahoo.com (gharnagel)
Newsgroups: sci.physics.relativity
Subject: Re: the notion of counter-intuitiveness in relativistic physics
Date: Sun, 11 Aug 2024 13:16:57 +0000
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On Sun, 11 Aug 2024 7:29:31 +0000, Richard Hachel wrote:
>
> Le 11/08/2024 à 02:11, hitlong@yahoo.com (gharnagel) a écrit :
> >
> >  What is u.U?
> >
> > You always try to run before you can walk.
>
>  :))
>
>  Not u.U
>
>  But cosµ.U and sinµ.U
>
>  µ is a greek letter denoting an angle.
>
>  R.H.

Then you should write it U.cosu, not cosu.U.