Inside the quietest room in the world – and no one can stay inside for more than an hour

Written by on April 29, 2023

Scientists have created the quietest room in the world – and no one can stay inside for more than an hour.

The room has been recognised by the Guinness World Records as the quietest room in the world, where you can even hear your blood move inside the concrete chamber

With a measured background noise that is 20 decibels below the threshold of human hearing, the room in Building 87 at Microsoft’s headquarters in Redmond, Washington makes you eventually lose your balance.

Reportedly, no one dared to stay inside for more than an hour.

But if you do manage to stay long enough, it is reported that you will be able to hear your heartbeat and a ringing will echo in your ears, becoming deafening.

When you move, your bones make a grinding noise. And eventually you will lose your balance, because the absolute lack of reverberation sabotages your spatial awareness.

The room has been called the “anechoic” chamber, because it simply creates no echo at all.

Built in 2015, nobody has yet been able to withstand standing in the room for more than an hour.

It took two years to design the room in order to achieve extreme silence. It is designed with an onion-like structure, with six layers of concrete and steel, that isolates it from the rest of the building and the outside world.

The concrete bunker currently holds the Guinness World Record for the world’s quietest place after swiping the title from another chamber in Minneapolis, which has noise levels of -9.4 decibels.

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