Tuesday, February 14, 2012

Decibel Levels Around the School-Shannon and Stephane








A scale based on the multiples of ten, which was originally called the logarithmic scale, now called the decibel scale. The faintest sound that a human ear can detect is known as the threshold of hearing. The most intense sound that a human can hear without causing any physical damage to their ears, is more than one billion times the threshold of hearing.

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