An electroencephalogram -- or EEG -- machine measures electrical impulse activity in the brain and can help give a diagnosis for conditions such as epilepsy.
His name is one of the most famous in the world of sport - yet almost nobody knows who the man was. Roland Garros has become synonymous with clay court tennis since the French Open was named in his honour in 1928. Now, his name is daubed in green and rust-red on almost every surface available to marketeers at Stade Roland Garros in Paris - from tennis balls and benches to parasols and sun hats.
The course actually takes its name from the huge hall called Valhalla in Nordic mythology which is located in Asgar and ruled over by the god Odin. The course was designed by professional golfer Jack Nicklaus who has won 18 major golf championships which is more than any other golfer in history.