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What makes an athletics track fast?
BBC via Yahoo News Singapore· 7 days ago"The only easy colour for rubber is black, that's the colour for tyres," observes Mr Bomfim. "Any rubber that is not black will be a challenge. One that...
"The only easy colour for rubber is black, that's the colour for tyres," observes Mr Bomfim. "Any rubber that is not black will be a challenge. One that...