Cicadas Can Cause Permanent Hearing Loss!

Cicadas are pretty darn ugly... But beyond their ugliness and making cars look pretty messed up... the sound they make is not only irritating, but potentially harmful. Sometime the end of this April 2013, billions of large flying insects called cicadas will make their appearance along with their characteristic stridorous noise. The male cicadas are the ones making this mating noise with "tymbal" soundmakers amplified by large resonance chambers found on body. Occurring every 1…

4/11/2013 2

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Noise Charts as It Relates to Hearing Damage

Fun hearing facts collected from a variety of sources... Environmental Noise Weakest sound heard 0dB Whisper Quiet Library at 6' 30dB Normal conversation at 3' 60-65dB Telephone dial tone 80dB City Traffic (inside car) 85dB Train whistle at 500', Truck Traffic 90dB Jackhammer at 50' 95dB Subway train at 200' 95dB Level at which sustained exposure may result in hearing loss 90 - 95dB Hand Drill 98dB Power mower at 3' 107dB Snowmobile, Motorcycle 100dB Po…

5/21/2012 0

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Human Ear Contains a Built-In "Ear Plug"

According to one Australian researcher , by just chewing a gum or singing/talking loudly, one could be protecting your ears from noise-induced hearing damage. How??? It is not common knowledge that the human ear contains two muscles that attach to the middle ear bones called the stapedius and tensor tympani muscles. The middle ear bones, composed of the malleus, incus, and stapes, are what transmits sounds from the eardrum to the cochlea which allows a person to hear. The stapedius muscle…

12/01/2011 3

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