THOSE who wax lyrical about the superior sound quality of compact discs over records or vice versa, do so merely for the sake of argument, conclude German music psychologists who found that only one

Workers in noisy coal washeries have been shown to suffer considerable hearing loss. According to one study, 20 per cent of washery workers had mildly handicapped hearing -- hearing loss becomes a

MANUFACTURERS of hydraulic hammers are being forced to make them quieter, largely following environmental legislation which originated in Germany a decade ago and is rapidly spreading.'Most of them