There is a growing sport in Berlin and London called Chess Boxing. Players alternate between a round of chess and a round of boxing until one is declared winner either by checkmate, KO, or technical stoppage.
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At 120 miles per hour, a Formula One car generates so much downforce that it can drive upside down on the roof of a tunnel.
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Each year, 30,000 people are seriously injured by exercise equipment.
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Tug of War was an Olympic event between 1900 and 1920.
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The household wrench was invented by boxing heavyweight champion Jack Johnson in 1922.
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Prior to 1900, prize fights lasted up to 100 rounds.
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A 'face-off' in hockey was originally called a 'puck-off'.
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