Uses different isotopes found within an item to learn something about that item (such as where a person grew up). See 'A Brief History of Climate Change'.
Isotope analysis
Fact of the Day
King John used the fat from 40 pigs to blow up the southern wall of Rochester Castle during a siege in 1215
Quote of the Day
"A grain, which in England is generally given to horses, but in Scotland supports the people.
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~ Samuel Johnson's dictionary definition for 'oats'
On This Day
1586 American colonists arrived in Plymouth with large quantities of tobacco. Smoking caught on quickly, though it was also used in tea.
1694 The Bank of England was founded by an act of parliament as a way to finance government debt by private subscription.
1943 The concentrated Allied bombing of Hamburg led to a three hour firestorm that killed approx 30,000 civilians.