🚀 go-pugleaf

In article <1992Nov3.175155.27867@impmh.uucp>, 
dsg@impmh.uucp (Dave Gordon) writes...

>In sci.physics.fusion <9211021802.AA29403@anubis.network.com> 
>logajan@anubis.network.com (John Logajan) writes:

>>I earlier wrote:
>>>The size of the electron is roughly the size of the nucleus, but
>>>only 1/1800th its mass.

>>Pierre St Hilaire replied:
>>>The leptons (electrons and neutrinos) are single entities and are assumed
>>>to be pointlike, i.e. they have no diameter to speak of.

>>jac@ds8.scri.fsu.edu (Jim Carr) concurred:
>>>All evidence is that quarks and electrons act as if they have zero radius
>>>(or, to be precise, less than anything we can measure today, many powers of
>>>10 less than a fm).

>>Then Mike Jamison pointed out to me via private e-mail that the density of
>>the electrons has been suggested to be that approaching black holes.


>Consider a single photon: as its energy increses, its "size" decreases
>(assuming that size is related to wavelength).  Since energy is
>equivalent to mass, at some point it must become so dense that it
>collapses into a black hole!

>Is this reasonable?  Is there an upper limit on frequency, such that a
>single photon at this limit collapses into a black hole?  How much energy
>does such a photon have?  Is there any chance of us being able to produce
>one?  What it the lifetime of such a single-photon black hole?

>Or is it not meaningful to talk about the "size" of a photon like this?
>What about other particles (electron, proton, etc) when accelerated to
>sufficient energies?



It occurred to me recently that because gravity is such a 
relatively weak force, we don't really probe particles to
map their mass distribution. Rather we map the distribution
of charge, and weak and strong forces. Who's to say that
mass has to concentrate the way the other forces do? 


If mass was diffused about a particle over several nanometres,
how could we tell? What if mass occupies space about a
particle the way electrons form orbitals about a nucleus?



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