Helm is the equipment that is intended to protect the head, especially brain riders. However, some cases are now emerging which indicates that the helmet can also cause hearing loss. Why did it happen?
Indeed, until now the exact cause is unknown. Although the distinctive roar of the Harley engine as somewhat hard for hearing, research has revealed the biggest source of noise for motorcyclists is actually generated by the air whooshing over the helmets'. Even when measured, the sound can exceed safe levels.
As quoted by the Times of India, Sunday (30 / 7), scientists have discovered new things. Researchers from the University of Bath and Bath Spa University conducted a test with a motorcycle helmet put on the mannequin head and then placed in a wind tunnel and dinyalakanlah fan. By placing a microphone in the helmet and the doll's ear, the researchers found that the area under the helmet and near the chin is a significant source of sound that reaches the rider most sensitive eardrums.
These findings may one day be used to design a helmet that is more quiet and efficient for the ears of the rider to enjoy the sounds of loud roar of motors. This study has been published in the Journal of the Acoustical Society of America.
Indeed, until now the exact cause is unknown. Although the distinctive roar of the Harley engine as somewhat hard for hearing, research has revealed the biggest source of noise for motorcyclists is actually generated by the air whooshing over the helmets'. Even when measured, the sound can exceed safe levels.
As quoted by the Times of India, Sunday (30 / 7), scientists have discovered new things. Researchers from the University of Bath and Bath Spa University conducted a test with a motorcycle helmet put on the mannequin head and then placed in a wind tunnel and dinyalakanlah fan. By placing a microphone in the helmet and the doll's ear, the researchers found that the area under the helmet and near the chin is a significant source of sound that reaches the rider most sensitive eardrums.
These findings may one day be used to design a helmet that is more quiet and efficient for the ears of the rider to enjoy the sounds of loud roar of motors. This study has been published in the Journal of the Acoustical Society of America.
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