What happens inside quietest place on Earth

Do you know which the quietiest place on Earth is?

It is Microsoft office in Redmond headquarters in USA. To be precise Anechoic chamber is the exact place at -20.6 dB.

There are six concrete rooms within rooms that enclose the chamber and can reduce the noise of a jet taking off to a whisper.

Literal meaning of Anechoic is echo free.

Year 2015 saw the world record of -9.4dB in Orfield Laboratories in Minneapolis.

 

Let’s walk through sounds heard at different decibels (dB) which is a measurement unit of sound.

10 dB is the sound of normal breathing.

0 dB is the lowest limit of sound that a human ear can hear.

Negative dB is the sound that a human ear cannot hear.

-24 dB is the noise produced by colliding air molecules and this quietness is outside vacuum.

-20.6 dB is the sound limit inside the Anechoic chamber. The room is so quiet that you can hear your blood flow.

 

 

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