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Birmingham's happiness rating on Monday 20th of May 2013 05:43 is 58.3% (average)

(with a standard deviation of 20.1 %)

black broken cute pretty teacher watch joy dead red girl rain window world home heart car green death loved body headache fight killer sleep eat hit slow bed cold thought adventure nice save nervous song good hand sin beautiful odd win life storm news

Sad to Happy:5.8250943396226 (2.0110843063091)
Asleep to Awake:5.4001886792453 (1.1639777465591)
Out of Control to In Control:5.2456603773585 (0.98724073409362)
/10 (standard devations in brackets)

Twice daily scores on Twitter.

*Every ten seconds the script reads the 1000 latest Tweets from within a 10 mile radius of the centre of Birmingham and rates the words against a database. Concept & site by Jon Bounds.

How does this work?