And several companies are working on materials that could one day be made into solar cells in the form of paint.

ECONOMIST: Small wonders

Since taking on the captaincy our one-day form has been so bad at Kent that we could only go one way.

BBC: Captain Key hails Kent fightback

On the day of the shooting, it was decided that three unmarked police cars would form a box for the hard stop.

BBC: Azelle Rodney death: Police 'shot suspect six times'