What's the science behind the three most important words in the English language? Find out in this week's episode of Public Address Science...

NOTE: A complete transcript of this episode is available here.

Further information:

-- Read more about Professor Garth Fletcher.

-- View a list of Prof Fletcher's books on Amazon.com.

This episode of Public Address Science was originally broadcast on Radio Live, 19th May 2007, 2 pm - 3 pm.

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