Sources: CIA World Factbook, Global Security, 2006 Iran census, Petroleum Economist, Times Atlas. Bookmark with: Delicious; Digg; reddit; Facebook; StumbleUpo ...

The sweeper's job is mainly to play behind the defence to add extra security and improve the passing out of defence. They must be able to read the game well, and also be calm and confident enough with ...

More than 71,000 people are dead, missing or buried under rubble following the devastating earthquake that hit China's Sichuan province. Click on the map to find out more about some of the ...

Find out the size details of a football pitch. Did you know that not all pitches are the same size? The length of a pitch must be between 100 yards (90m) and 130 yards (120m) and the width not less ...

North Korea is one of the most secretive states in the world. Its citizens cannot travel abroad and have little, if any, contact with those who visit their country. The few tourists who do make it are ...

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There's no getting away from it, tennis has an unusual scoring system. The score does not go up in units of one or even in units of the same amount. The first point in a game is called 15 and the next ...

The BBC Sport website is available on your mobile phone. Get live scores/results and latest news any time, anywhere.

If bowlers give most batsmen a short and wide delivery outside off stump, chances are they'll be hit for four square of the wicket. The square cut allows batsmen to free their arms and hit the ball ...

Wingers, wide midfielders, call them what you like, they are some of the most exciting players around. Ryan Giggs at Manchester United, Shaun Wright-Phillips or Damien Duff at Chelsea. It is a varied ...

In rugby league a scrum is a way of re-starting play after: The ball has gone out to touch The ball has been knocked on A forward pass Play is too dangerous to continue Not everyone can join a scrum.