Decibel

What is a decibel, and how is it measured?The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. 


The decibel scale is a little odd because the human ear is incredibly sensitive. 



Your ears can hear everything from your fingertip brushing lightly over your skin to a loud jet engine. 



In terms of power, the sound of the jet engine is about 1,000,000,000,000