If you have not seen this, I recommend it.
http://www.pbs.org/search/search_res...rse%22&spell=1 if the link doesnt work go to www.pbs.org and search "Elegant Universe" yourself
http://www.pbs.org/search/search_res...rse%22&spell=1 if the link doesnt work go to www.pbs.org and search "Elegant Universe" yourself

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