Physics
Wall of silence - Mystery abounds after China's richest man vanishes
Demolition drama - Passions raised by plan to demolish Tokyo theatre
Rugy Union: Cipriani axed from England team - England manager Martin Johnson drops Danny Cipriani for Toby Flood and also omits Tom Rees and Tom Palmer for Saturday's Test against New Zealand.
China's economic growth 'to slow' - The World Bank says China's economy will grow slower than expected in 2009 - as it feels the effects of the global crisis.
One year on - Australia's PM is still popular but not without critics