Mixed business benefits from London Olympics
Bangladesh launches solar energy in Dhaka
Nasa test-flies Mighty Eagle robot lander
New York funds program for illegal immigrants in the US
Safi Qurashi interview: The future
Safi Qurashi Part-2
Exclusive interview with Safi Qurashi - Part one - the case
New York to London in just one hour? Hypersonic jet plane tested?
Bill Gates sinks $370m into "toilet of the future" project