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From: hitlong@yahoo.com (gharnagel)
Newsgroups: sci.physics.relativity
Subject: Re: the notion of counter-intuitiveness in relativistic physics
Date: Thu, 8 Aug 2024 04:08:23 +0000
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On Wed, 7 Aug 2024 21:28:27 +0000, Richard Hachel wrote:
>
> The big problem with relativity is the almost complete absence
> of clear concepts.
> There is no need to talk about transverse mass, longitudinal
> mass, and other such joys.  You do like Hachel, you keep it
> simple, and, like Hercule Poirot, you turn on your neurons.
> "Mass is a relativistic invariant".
> Mass is what it is, like a postage stamp is a postage stamp.
> All the bullshit of the relativists only obscures human knowledge,
> deflects it, and does not take it further.

Physicists maintain that mass is invariant, so you're preaching
to the choir.  This was maintained in physics textbooks 60 years
ago.

> I will never understand all this madness.

Knowledge doesn't spring on the scene fully fleshed out.  It comes
little by little, here a little, there a little.

> It is not mass that is relative, but speed, THEREFORE the quantity
> of movement, therefore energy.
> The notion of rest mass is useless at all, except to make physicists
> look like Laurel and Hardy type comedians.

You're looking back on an earlier era that hadn't learned what we
know today.  Have some humility, because people a century from now
will look back at us and laugh.