Word: titanium
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...American golfer Fred Couples who earned the nickname Boom Boom in the 1990s with his explosive tee shots. But golfers who use titanium clubs in search of similarly long drives beware: those booming shots may not be good for your hearing...
...study in the latest issue of the British Medical Journal found that modern thin-faced titanium golf clubs produce a noise loud enough to damage the sensitive hairs of the inner ear. Provocatively titled "Is Golf Bad for Your Hearing?" the study focused on the case of a 55-year-old man who developed tinnitus and hearing loss in his right ear after playing golf three days a week for 18 months with a thin-faced titanium driver, the King Cobra LD. After ruling out age-induced hearing loss and damage from exposure to other loud noises, the patient...
Doctors gauged the sound produced by the patient's club, along with five other titanium clubs, and compared it with that of older-generation steel clubs. A measuring device was positioned 5.6 feet (1.7 m) away from a golf pro at an outdoor tee - approximating the distance between a ball and a golfer's closest ear. Doctors found that all six titanium clubs exceeded safe limits, while only two of the six steel drivers posed a hazard...
Although noise-induced hearing loss typically occurs from continuous loud exposure, it can also result from high-intensity "impulse noises," such as gunshots or explosions. According to Dr. Malcolm Buchanan, one of the report's authors, the safe limit for impulse noises is 110 decibels. The titanium drivers all exceeded this limit, with one club cracking out 128 decibels. (See the full results here.) The noise measurements would have been even higher at an enclosed driving range, Buchanan said...
...long-lasting thermal and acoustic properties in everything from pedestrian bridges to bus stations. That in turn contributes to big energy and other environmental savings. Some of the innovations are startling: the white concrete that American architect Richard Meier used for the Jubilee Church in Rome, for example, contains titanium dioxide, which keeps the concrete clean while also destroying pollutants around it, like car exhaust...