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From: Jeroen Belleman <jeroen@nospam.please>
Newsgroups: sci.electronics.design
Subject: Re: relevation_physics
Date: Wed, 26 Jun 2024 10:22:58 +0200
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On 6/26/24 07:52, Jan Panteltje wrote:
> On a sunny day (Tue, 25 Jun 2024 20:23:26 +0200) it happened Jeroen Belleman
> <jeroen@nospam.please> wrote in <v5f1qf$1lnfr$2@dont-email.me>:
> 
>> On 6/25/24 06:30, Jan Panteltje wrote:
>>> relevation_physics
>>> Was watching old video, early morning
>>> Thinking about why we cannot measure size of electron (still unknown)
>>> Then wondered if I could make something mechanical that would behave like electon,
>>> say 2 repel each other etc..
>>> Thinking plasma, but hard to make.
>>> Then thinking magnets, but must be 3D.
>>> So a constructon of many magnets with say N poles tied together and south poles at the outside
>>> So then thought so much force needed to hold those north poles together..
>>> Then 'relevation'!! BLACK HOLE
>>> at he center, much to do these days about femto scale black holes all over the universe..
>>> Then construction, would I use needles for a demo ball made of thousand magnetic needles,
>>> like strings.. STRINGS shit oh man I'v got it.
>>>
>>
>> The size of the electron isn't entirely unknown. It's just that
>> different methods give different results. An electron isn't a
>> solid tiny billiard ball. It's a fuzzy thing, kind of hard to pin
>> down its size to a definite value. Much depends on how hard you
>> squeeze!
>>
>> Your ball of magnets isn't going to work. It would amount to
>> making a magnetic monopole. To our current knowledge, there is
>> no such thing. Reproducibly making or detecting magnetic monopoles
>> would be a Nobel prize achievement!
> 
> Well, that nobble price is mostly political these days I think
> Several winners were jailed ..
> 
> Why would a ball of magnetic needles not work
> and 2 with the same polarity not deflect?
> 
> [...]

It comes down to the origin of magnetic fields as a relativistic
effect of moving electric fields. This implies that the magnetic flux
through the surface of a closed volume always adds up to zero. There
have been a few claims to the contrary, but no one ever came up with
a solid reproducible demonstration. The corollary is that when you
cut a bar magnet into two pieces, you don't get a separate north and
south pole, but instead two smaller magnets with their own north and
south poles each.

It was formalized as one of Maxwell's laws, which, although formulated
before relativity, turned out to fit in perfectly.

Jeroen Belleman