If one car horn blows at 100 decibels, would 100 horns blowing at the same time still make a sound of 100 decibels? Or would it be higher? The sound would be much louder, but it wouldn’t be 100 x 100 ...

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 ...