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Galaxy study hints at cracks in dark matter theories



 
 
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Old October 8th 09, 02:59 AM posted to sci.astro,sci.physics
N:dlzc D:aol T:com \(dlzc\)[_545_]
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Default Galaxy study hints at cracks in dark matter theories

Dear john:

"john" wrote in message
...
....
Sam, DM is a problem.


DM is a label hung on an observation that indicates there is
non-visible matter, or our current best theory of gravitation is
"scale" dependent. It is not a "problem", it is an opportunity
for future employment.

Singularities is a problem.


Singularities occur all the time in mathematics. Look at the
process of differentiation. If you refer to "black holes", so
what? A better set of coordinates fixes the singluarity at the
horizon, and even "Bose-Einstein condensates" are singular...

Movement of electrons without requiring energy
is a problem.


They do need energy, they need to be balanced with a similar
movement of protons (in a nucelus, say), or they need to be
counterbalanced by electrons moving oppositely. Perhaps you
refer to electrons in a nucleus?

Movement of photons without losing energy is a problem.


They don't lose energy in a laboratory. They are not waves in
water. We've got plenty of them coming from 12.7 or so billion
years ago. And no current theory (or even Maxwell) expects them
to lose energy "in flight".

Galactic rotation curves is a problem.


See "future employment" above.

Protons that never degrade is a problem.


*Not* a problem. No quantum particles "degrade". The second law
applies to *systems* of particles.

Protons exactly the same size everywhere is a problem.


No. Physics is the same everywhere, so it is an opportunity to
evaluate other things of import.

You call photons mechanical?


Photons are quantum particles. A "knock in the head" passed
between charges.

What are you trying to say, that Science is not Religion, that we
don't have a Playbook all written out? You are right. Ain't it
great!

David A. Smith


 




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