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We sent Radzi to Wimbledon to find out about some of the state-of-the-art technology behind the most prestigious prize in tennis.
What makes a good referee?
Do 10,000 cricket balls weigh more or less t...
Radzi goes to Wimbledon
Lindsey runs the London Marathon
Lindsey trains for the London Marathon
Lindsey's ballet challenge
Lindsey and Radzi's cricket challenge
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