In 2007, a new type of golf club hit the market. The distribution of mass in the club head made it less likely to twist, making an off-center hit less likely to send the ball veering1 off course. It did have one drawback: a loud noise when it struck the ball, piercing through the tranquility of a golf course. The club never grew popular among players, with many saying they disliked the noise. Some players compared the sound to a cookie tray hitting the TOP of a car, said Daniel Russell, a professor of acoustics2 at The Pennsylvania State University. It was such a different -- some say annoyingly loud -- sound, it raised eyebrows3.Russell and his graduate student Peter Kerrian set out to find the cause of the offensive clang. They had analyzed4 a variety of clubs from recent years and the noisy club stood out as a particularly interesting test case.The researchers tracked the clanging sound to vibrations5 in the bottom of the club head, called the sole, that were strongest in the most sensitive range of human hearing.The researchers will present their results at the 171st meeting of the Acoustical6 Society of America, held May 23-27 in Salt Lake City.Russell has long studied the acoustics of sports equipment, including baseball bats, tennis rackets and hockey sticks. He says sound is one of the major considerations for players in selecting equipment. They want to hear the sound and be able to get a sense of the quality of the hit, he said.In the case of the new driver, the sound not only didnt match expectations, it annoyed people.The sound had peaks in the 2-3 kilohertz range. The human ear is very sensitive to this range, Kerrian said. He compared the sound to the tin-can ping of an aluminum7 baseball bat, another grating sound for sports aficionados8.
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1 veering n.改变的；犹豫的；顺时针方向转向；特指使船尾转向上风来改变航向v.（尤指交通工具）改变方向或路线；（指谈话内容、人的行为或看法）忽然改变；（指风） （在北半球按顺时针方向、在南半球按逆时针方向）渐渐转向；风向顺时针转 参考例句： Anyone veering too close to the convoys risks being shot. 其他人改变方向，过于接近车队就有遭枪击的风险。 来自网络 The little boat kept veering from its course in such a turbulent river. 小船在这湍急的河中一直改变方向。 来自网络
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