Navigation Links
Motorcycle helmets hard on hearing
Date:7/29/2011

Motorcycle helmets, while protecting bikers' brains, may also be contributing to hearing loss. Scientists mapped the airflow and noise patterns to find out why.

The distinctive roar of a Harley's engine is loud, but studies have revealed the biggest source of noise for motorcyclists is actually generated by air whooshing over the riders' helmets. Even at legal speeds, the sound can exceed safe levels. Now, scientists have identified a key source of the rushing din. Researchers from the University of Bath and Bath Spa University placed motorcycles helmets atop mannequin heads, mounted them in a wind tunnel, and turned on the fans. By placing microphones at different locations around the helmet and at the mannequin's ear, the researchers found that an area underneath the helmet and near the chin bar is a significant source of the noise that reaches riders' sensitive eardrums. The team also investigated how helmet angle and wind speed affected the loudness. Future tests will move beyond the wind tunnel to real-life riders on the open road. The findings, described in the Journal of the Acoustical Society of America, may one day be used to design quieter helmets, saving riders' ears for the enjoyment of hard biker rock, the researchers say.


'/>"/>

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1

Related medicine news :

1. Motorcycle Fatalities Drop Sharply in U.S.
2. Motorcycle Cancer Risk and ELF EMF Radiation Invasion of Gastrointestinal Melatonin
3. Young Motorcycle Riders Suffering More Brain Injuries
4. Motorcycle helmets reduce spine injuries after collisions
5. Motorcycle Helmets Help Protect Against Spine Injury: Study
6. Motorcycle Deaths Drop for Second Straight Year: Report
7. Helmets must be part of skiing and snowboarding culture, doctors urge
8. At Any Age, Helmets Make Riding Safer
9. Black motorcyclists -- even in helmets -- more likely to die in crashes
10. High-Tech Football Helmets Gauge Force of Collision
11. Alexander Graham Bell Association for the Deaf and Hard of Hearing Announces 2010 Award Recipients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/29/2016)... ... April 30, 2016 , ... World Patent Marketing ... Up Springboard, an automotive invention that improves the storage features of a pick ... billion," says Scott Cooper, CEO and Creative Director of World Patent Marketing. "Over ...
(Date:4/29/2016)... ... April 29, 2016 , ... Memorial Healthcare System Graduate ... Education (ACGME) that it has received accreditation for its residency program on Physical ... programs that Memorial is currently pursuing, including Pediatrics and Internal Medicine. This accreditation ...
(Date:4/29/2016)... ... April 29, 2016 , ... The American ... productivity, stability, even security. Most importantly, employees are the single most important asset ... American workers so unhappy? , Just under half of American workers are emotionally ...
(Date:4/29/2016)... ... April 29, 2016 , ... Coast Dental Fort Stewart is celebrating its ... location in the Exchange Furniture Mall at 112 Vilseck Road in Fort Stewart. There ... TV. Plus attendees will have the opportunity to meet general dentists Thomas Richards, DDS, ...
(Date:4/29/2016)... ... April 29, 2016 , ... Mobility Designed is redefining mobility with ... armpits, the M+D Crutch evenly distributes body weight from the elbow to the forearm. ... using the crutches than with other crutches. , Co-founders Max and Liliana Younger were ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... , April 28, 2016   Click here ... Pharmacy, Inc. (NYSE: DPLO), the nation,s largest independent ... a definitive agreement to acquire Valley Campus Pharmacy, ... ("TNH"), a leading specialty pharmacy that provides individualized ... California . In 2015, TNH generated approximately ...
(Date:4/28/2016)... April 28, 2016 Research and ... Plastic Surgery Products Market 2016-2020" report to their ... , The global plastic surgery products market ... during the period 2016-2020. , ,The growing adoption of ... the growth of the market. Lasers are used to ...
(Date:4/28/2016)... 28, 2016 ... Phillips und Stephen Schmidt ... ArisGlobal®, ein führender Anbieter cloudbasierter Softwarelösungen ... bekannt, dass neue Führungskräfte zum Team Sicherheit ... die vielfältige Erfahrungen mitbringen.  Dies wird die ...
Breaking Medicine Technology: