Nice article that gives you plenty of material to speculate and think about !!
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/16/scispeed116.xml
What do you guys think of this?
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/16/scispeed116.xml
What do you guys think of this?