【科学60秒】机关算尽太聪明，反误了卿卿性命_英语听力练习mp3下载-体育-沪江听力酷

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【科学60秒】机关算尽太聪明，反误了卿卿性命

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Baseball players sometimes cheat! One popular method has been to cork the bat. You ____1____ some of the core of the bat, and replace the heavy wood with light cork. You can then swing the lighter bat faster, and thus hit the ball further.
Of course, most ballplayers aren’t physicists, so they don’t realize that by making the bat lighter, they’re reducing ____2____. You swing faster, but get a ____3____ contact. In theory, anyway.
So physicists led by the University of Illinois’s Alan Nathan tested corked bats under controlled conditions. The ____4____ lumber actually usually causes the ball to go less far, they found. The work appears in the online forum the Physics arXiv. So for a power hitter to cork his bat is a bad idea.
But the researchers note that, ____5____, a corked bat might result in more homers from non-homer hitters. Who can watch a pitch slightly longer before swinging, make up for the lost time with a faster swing and achieve more solid contact more often. So a corked bat is a bad idea for Sammy Sosa, who got caught using one. But a good idea for, say, Bucky Dent.