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cmb
cmb is offline
#3
Feb3-12, 06:28 AM
P: 623
(Did you bother to do a search for this topic?)

See;

http://www.physicsforums.com/showthread.php?t=539162

&

http://www.physicsforums.com/showthread.php?t=526008

&

http://www.physicsforums.com/showthread.php?t=382007

&c.