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Electronic giants have gathered at the Mobile World Congress. Rory Cellan-Jones joins them in Barcelona to discover the latest in smart phone gadgetry and applications.

Professor Nigel Shadbolt is one of the originators of Web Science. Last week he gave an annual talk as part if the 'Technology Visionaries Lecture Series' for the Royal Academy of Engineering in London. He joins Gareth Mitchell to discuss his work on the future of digital data and his ideas that the time has come for governments to unlock the information that your taxes have paid for.

A year ago, the New Zealand city of Christchurch suffered one of the worst earthquakes in its history. As aftershocks continue the city representatives and planners have turned to technology to help solve some of the current and future problems. Simon Morton of Radio New Zealand discusses how mobile apps, sensors and augmented reality have improved predictions of future tremors and provided key data about the nature of seismically active regions.