http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/radiation/originsrev2.shtml
http://ssscott.tripod.com/BigBang.html
http://simple.wikipedia.org/wiki/Big_Bang
http://www.big-bang-theory.com/
http://patrickgrant.com/BBTL.htm
The Stephen Hawking Big Bang documentary
http://ssscott.tripod.com/BigBang.html
http://simple.wikipedia.org/wiki/Big_Bang
http://www.big-bang-theory.com/
http://patrickgrant.com/BBTL.htm
The Stephen Hawking Big Bang documentary