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
Entrance to the Tower of London used to be free if you took a cat or dog to feed the lions.
Quote of the Day
"Madam, I have whipped his arse; you may kiss it if you please.
"
~ Buchanan, the young James VI of Scotland's tutor, after being upbraided for punishing his charge
On This Day
43 BCE The assassination of Cicero, requested by Marc Antony. When his head was delivered to Anthony, his wife, Fulvia, spat on it and jabbed hairpins into his tongue.
1732 The Theatre Royal, now known as the Covent Garden Opera House, opened with a performance of the Beggar's Opera.
1787 Delaware became the first state of the modern United States.
1817 Rear-Admiral William Bligh died. He had been captain of HMS Bounty during the mutiny.
1941 The Japanese launched a surprise attack on the American naval base a Pearl Harbour, Hawaii, killing 2,403.
1982 Charles Brooks Jr became the first person to be executed by lethal injection, with a huge dose of 'truth serum'