Olympic heroes past and present have launched a new exhibition that lifts the lid on technology behind sport.
British sprinter Darren Campbell was joined by Olympic gold medallists Alan Wells and Tessa Sanderson at the Science Museum to open its latest attraction, Science of Sport.
The exhibition will give visitors the chance to test their reflexes, reactions and muscle power using simulators and displays.
Would-be sports stars of tomorrow can check the accuracy of their tennis shots and compete against friends in a quick sprint and get tips on their technique from Campbell via video message.
Sue Campbell, chairman of the organisation UK Sport, said: "As you go around, you realise the large amount of science in the preparation of athletes."
She added that becoming a world class sportsperson was no longer "a matter of chance, it's now a matter of science."
The exhibition first opened in 1997 and ran for 18 months, attracting about 800,000 visitors.
Items on display include Chris Boardman's gold-medal winning bike, a climbing boot worn by Sir Edmund Hillary as he scaled Everest and seven prototypes of the revolutionary Predator football boot.
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