Editor's Note: We have strived to maintain accessibility in our Bring Science Home activities by limiting the required technology. We recognize technology is now more widely available than it was when ...

Sounds above 80 dB can cause hearing damage, and we should limit the exposure to prevent hearing loss. Decibel apps are a convenient way to measure volume fairly accurately with your phone. Our ...

Santa Clara, Calif. – Two “Boomer” audio amplifiers from National Semiconductor Corp. deliver 80-dB power supply rejection ratio (PSRR) at 217 Hz and 3 volts with inputs terminated with a 10-ohm ...

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 ...