A decibel (dB) is a unit used to measure how loud a sound is. The louder the sound, the higher the decibel number. Sounds are made when something vibrates, creating sound waves that travel through the ...
We live in a noisy world, from traffic and aircraft congestion to construction sites, TV shows, and many other sources. But understanding dB measurements can help, as we will soon see. Noise is an ...
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