06:48 Prince's colleagues called an addiction specialist with a "grave medical emergency" just hours before the singer was found dead.

06:06 Police expect to learn more details today about the death of Rotorua man Ian Walter White which is being treated as suspicious.

06:04 Keeping the New Zealand economy safe from internet attackers is the focus of today's inaugural Cyber Security Summit.

05:58 A wildfire raging through part of Alberta in Canada has completely destroyed 1 neighbourhood of 600 homes.

05:25 Dozens of firefighters were needed to battle a large scrub fire on Christchurch's Port Hills early this morning.

Sun, 29 Apr 2012

Math & Internet, Professor Frank Kelly

When engineers need to fix the internet, they call Frank. Professor Frank Kelly FRS, visiting mathematician from Cambridge University on the mathematics of the internet, challenges, mistakes and weak-points, and some wonders of maths in general.

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