earplugs
An earplug is a device that is inserted in the ear canal to protect the user's ears from loud noises, intrusion of water, foreign bodies, dust or excessive wind. Since they reduce the sound volume, earplugs are often used to help prevent hearing loss and tinnitus (ringing of the ears).
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Trivia The world's largest pyramid isn't in Egypt
The world's largest pyramid isn't in Egypt The Great Pyramid of Cholula, located in Cholula, Puebla, Mexico, is the largest pyramid in the world and—with a base four times the size of the Great Pyramid of Giza—also happens to be the largest monument ever constructed. Part of the reason it's not... -
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Trivia Roosters have built-in earplugs
Roosters have built-in earplugs Considering a rooster's call can reach 140 decibels or louder, it might leave one to wonder how the rooster itself keeps from going deaf when that noise is coming right out of its beak. It turns out, the farm fowl have built-in earplugs. Researchers found that...