salfordacoustics.co.uk

4Xj8o TIL The intensity of sound is measured in decibels (dB), the decibel scale is logarithmic. Basically a 40dB sound is not twice as loud as 20dB one, but a hundred times louder. Also one alarm clock ringing at 70dB, two alarm clocks ringing together don’t hit 140dB on scale but measure 73dB.
d8vEj TIL that the decibel (dB) scale is logarithmic instead of linear. The difference between a rock band and an airplane taking off is only about 10dB.