Vibrations and how they get to your ears.
Noise for airports is a blog about culture, sound, music, and technology.
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Updated (sometimes) by Nick Seaver.
5-10 percent of MP3 users risk permanent hearing loss if they listen to a music player at high volume for more than 1 hour per day, each week over at least 5 years. “It can take years for the hearing damage to show, and then it is simply too late,” she added.(via nytimes)