In Decibels: Use with caution, I reviewed the concept of decibels as a ratio of two powers (and sometimes voltages). Decibels are also used to indicate absolute power and voltage levels by specifying ...

To assess the utility of measuring direct bilirubin (DB) during the first 72 h of life in infants admitted to the neonatal intensive care unit (NICU). The DB levels were measured in 3715 infants ...

Q. I’m worried about my hearing because I played in a rock band when I was a kid. How dangerous is the sound level on the bandstand? A: Sound volume is measured in decibels (dB). You risk hearing loss ...

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 ...

The Health and Safety Commission put together an Info sheet for understanding how sound works. I think it is very handy to know how dBs add up when you are trying to build a quite (quiter) ...

A decibel level is the physical unit that measures the intensity of sound. An average home on an average day with a couple of kids and a few people talking has a decibel level around 50. Add a barking ...