----- Original Message -----
From: Ture Sjolander
To: fermilab@fnal.gov
Cc: physicsquestions@fnal.gov
Sent: Wednesday, September 10, 2008 1:57 PM
Subject: Enquiry Hadron Collider at Fermilab

To the Large Hadron Collider Experiment staff.
Can any one tell me or the whole world for that Matter, Why the Size of  "the ring" has to be 27 km ?
Why not 27 meter or 270 kilometer?
I find the question having great relevance!
Ture Sjolander
PS/ A less important second question: Why is it named "Dark Matter", as "it"  is invisible or transparant or not even found, yet.
Please forward the question to whom it may concern, it you can't respond to it.