"Tests of nuclear bombs conducted in the 1950s and 1960s have had an unexpected benefit for forensic scientists.
A permanent record of the fallout from above-ground tests is embedded in tooth enamel and allows scientists to estimate the age of a person at the time of death more precisely.
Professor Jonas Frisén, of the Karolinska Institute in Stockholm, and team report their findings today in the journal Nature.
The researchers say their method has already been used to help identify people who died in last year's Indian Ocean tsunami..."
http://www.abc.net.au/science/news/stories/s1460856.htm
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"The voyage of discovery lies not in finding new landscapes but in having new eyes." - Marcel Proust