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Electrodynamics and magnetic momentum of Sun-like stars



 
 
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Old September 29th 15, 07:07 PM posted to sci.astro.research
David Staup[_2_]
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Default Electrodynamics and magnetic momentum of Sun-like stars

[[Mod. note -- I think further discussion of the nature of Van der Waals
forces belongs over in our sister newsgroup sci.physics.research, so
unless there's some direct relevance to astrophysics, this thread is
now closed.
-- jt]]

On 9/28/2015 4:12 PM, jacobnavia wrote:
Le 28/09/2015 05:09, David Staup a écrit :
On 9/25/2015 9:19 PM, jacobnavia wrote:


Static electricity could have an important role in planet formation and
maybe star formation.

van der waals forces not static electricity


Interesting.

1) The cited article says:
quote
Although these experiments lacked formal controls to identify the
precise clumping mechanism, it is apparently electrostatic.
end quote

2) Van der waals forces are inherently electrostatic. Dipoles can pair
with their dipoles attracting other similar molecules, so I do
notunderstand the difference being made here. Van der waals forces ARE
electrostatic...

to get attraction you need opposite charges, not likely in this situatiom

If you have dipolar molecules yes, you have opposite charges. If you
have charge accumulation by mechanical input it is the same.

chuckle
1 van der waal forces do not require dipoler molecules

2 charge accumulation by mechanical means does not provide opposite
charges in the same material all of your salt crystals are either
acquiring extra electrons or being stripped of them but not both at the
same time. A static charge on the individual salt crystals would not
facilitate clumping but quite the opposite.
 




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