[ExI] teachers

[Jason Resch]

On Wed, Aug 30, 2023, 12:44 PM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> .
> Subject: Re: [ExI] teachers
>
>
> On Wed, 30 Aug 2023, Jason Resch via extropy-chat wrote:
>
> > Where our understanding is known to be limited limited relates to edge
> > conditions, at very tiny or scales, where gravity becomes as strong as
> the other forces as in black holes, and in cosmic scales, such as the
> nature of dark matter and dark energy...
>
> It doesn't work that way however.  There is a known particle that carries
> the force necessary to hold a bunch of positive particles together in the
> nucleus.  It has nothing to do with gravity.
>

I didn't mean to imply that gravity is what holds nuclei together. That's
what the strong force does.

Gravity becomes stronger or as strong as the electromagnetic force in
aggregations of mass of around 10^56 protons worth of atoms. This is why
nearly all stars are within an order of magnitude of this mass. It is only
then that gravitational pressure can overcome repulsion of the positively
charged nuclei.

Gravity also becomes as strong as the other forces when the distances
approach Planck lengths (or at temperature extremes when photon energies
approach "absolute hot".) These scales are trillions of times smaller than
protons.



> It is because of that (nuclei holding together against an enormous
> repulsive force in the positive particles) that physicists discovered
> quantum mechanics.  Cool!
>

I thought it was Planck investigating black body radiation and Einstein
explaining the photoelectric effect in terms of photons. What result are
you referring to here?

Jason
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