Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Science Fiction > Science > Re: Confused Ab...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 5 of 8 Topic 3394 of 3638
Post > Topic >>

Re: Confused About Dark Matter

by Erik Max Francis <max@[EMAIL PROTECTED] > Mar 7, 2008 at 12:13 PM

Mike Williams wrote:

> My crackpot theory is that dark matter is just normal matter that's 
> outside the brane in which our universe resides. Brane theory suggests 
> that gravity is weak because gravitons can travel in all directions, 
> whereas other force carriers can't travel outside the brane. Objects in 
> our universe feel the gravity from massive objects in nearby branes, but

> don't feel any other forces from them since the other force carriers are

> trapped in their branes. The dark matter appears fuzzy because the 
> separation between the branes is the equivalent of several thousand 
> light years.

Doesn't seem like this would have worked, anyway.  First, such a 
distance would be hard to explain the profound effects we see, 
considering that our estimates are that dark matter is something like 
90% of the matter in our Universe.  Second, it wouldn't explain the halo 
distribution of dark matter we've introduced to explain galactic 
rotation curves.

You'd have to explain why the effect is as strong as it is, as well as 
why it has a distribution that correlates with strongly with haloes 
around galaxies.  I'm not really seeing how a nearby brane could do that.

-- 
Erik Max Francis && max@[EMAIL PROTECTED]
 && http://www.alcyone.com/max/
  San Jose, CA, USA && 37 18 N 121 57 W && AIM, Y!M erikmaxfrancis
   Women are equal because they are not different any more.
    -- Erich Fromm
 




 8 Posts in Topic:
Confused About Dark Matter
Larry Caldwell <firstn  2008-03-06 20:56:24 
Re: Confused About Dark Matter
Erik Max Francis <max@  2008-03-06 22:37:39 
Re: Confused About Dark Matter
Larry Caldwell <firstn  2008-03-07 19:58:47 
Re: Confused About Dark Matter
Mike Williams <nospam@  2008-03-07 07:39:53 
Re: Confused About Dark Matter
Erik Max Francis <max@  2008-03-07 12:13:19 
Re: Confused About Dark Matter
bealoid <signup@[EMAIL  2008-03-07 16:52:05 
Re: Confused About Dark Matter
Mike Williams <nospam@  2008-03-08 08:56:08 
Re: Confused About Dark Matter
Russell Wallace <russe  2008-03-09 03:50:47 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan13V112 Wed Jul 23 21:51:24 CDT 2008.