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From: nospam@de-ster.demon.nl (J. J. Lodder)
Newsgroups: sci.physics.relativity
Subject: Re: Scalar waves
Date: Wed, 1 May 2024 09:46:08 +0200
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Thomas Heger <ttt_heg@web.de> wrote:

> Am Montag000029, 29.04.2024 um 15:28 schrieb Ross Finlayson:
> 
> >>
> > 
> > 
> > It's rather as there's a physical constant.
> > 
> > It's 1.0. In natural units, it's infinity.
> > 
> > Or, there's a physical constant.
> > 
> > It's infinity. In natural units, it's 1.0.
> 
> 
> I don't like this 'c=1 thing', because 1 is a natural number, while 
> speed/velocity have physical dimensions with v = dx/dt.
> 
> Because time and distance are not measured with the same units, c had to
> have units.

You really need to work on your misunderstandings about units and
dimensions.
In particular, physical quantities do not -have- a dimension.
Conversely dimension is not a property of physical quantity.
You cannot measure a dimension.

Dimensions are human constructs that can be assigned arbitrarily,
limited only by the need to be consistent about it.

You cannot deduce anything from a clash of dimensions
beyond the undeniable fact that you have made a mistake.

> Now 1 has no units whatsoever (because it is just a number) you cannot
> say, that c is one.

Of course you can, and people (who know better than you)
do it all the time.

Jan