A pile of old coins which have helped keep the clock mechanism of London's Big Ben accurate for the last 150-years were replaced on Thursday by a new five pound ($8.29) coin to mark the 2012 Olympics.

A female student who was expelled from a Sao Paulo university after her short dress sparked student protests has been allowed back.

A total of 10,012 students bathed simultaneously in the city's seven hotsprings, setting a new Guinness World Record.