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Bigger balls, please

Bigger balls, please

作者:荣针觑  时间:2019-03-06 03:17:01  人气:

By Joanna Marchant SERVES are becoming so powerful in professional tennis, especially on fast surfaces such as grass, that soon players will find it impossible to get to the ball in time to return it. The technological fix? Bigger balls. The International Tennis Federation, based in London, has enlisted engineers to test the new balls, which are 6 per cent larger but with slightly thinner skin than normal, so they still weigh the same. To test their performance, Paul Rose of the ITF, along with mechanical engineer Steve Haake and his colleagues from the University of Sheffield,