The quietest room in the world: You can hear the sound of blood flowing on your head

In 1969, Steve Orfield had just graduated from college. He graduated and worked as a salesman for the office furniture industry. At that time, work boxes that separated people to maintain privacy for each office worker were becoming popular.

Orfield was tasked with selling such a box, which was advertised as having the ability to completely isolate the center. People outside cannot overhear the phone conversation of the person sitting inside, or hear any annoying sounds coming from inside.

Absolutely soundproof rooms have been cherished since the 1960s.

But it's just advertising. The box did not work effectively. No one knows why its design failed, even the manufacturer can't explain it. Orfield quit his job, and a few years later, he was seen building an entire laboratory in Minneapolis.

Inside the Orfield Laboratory located at Birgham Young University, USA, there is a room known as the quietest room on Earth. Orfield succeeded in creating a room that suppressed all sounds coming from it.

Steve Orfield inside the quietest room on Earth that he created.

But it was a treasure that Orfield could not sell to anyone, he turned it into a multidisciplinary research center, serving all the most sophisticated sound-related experiments.

Companies will bring their products here to test the noise they can make. And NASA sent astronauts to help them adapt to the silence of space.

What happens inside the quietest room in the world?

The room is called an anechoic chamber, with anechoic being Latin for "no echo" - "no reflection" or "no echo". It is essentially a chamber, inside a chamber, inside another chamber.

All of its walls, floors and ceilings are lined with sponge-like fiberglass wedges nearly 100 centimeters thick. Next, the six sides of the chamber are covered with steel plates up to 10 cm thick. The outermost layer is another 30 cm thick layer of concrete.

The six sides of the chamber are covered with steel plates up to 10cm thick.

Orfield says the quietest rooms you'll ever enter, such as a bedroom, have the lowest noise level around 30 decibels. But the average noise level inside Orfield Laboratory is only -13 decibels. That means the sound waves that exist in here are below the threshold that the human ear can perceive.

This anechoic chamber is truly the quietest place on Earth. And there are strange rumors about it. People say you can't stand in there. When the lights are turned off, and there is no sound around, you will become disoriented, dizzy and nauseous.

When there is no sound, the only thing you can hear are the sounds coming from your own body.

Some people believe that they can go crazy in this room. Because silence can also be a form of torture. When there is no sound coming from outside, the only thing you can hear are the sounds coming from your own body. It is the sound of rustling clothes, the sound of swallowing saliva, the sound of breathing, the heartbeat and even the sound of blood flowing in the brain.

Do you really go crazy after 45 minutes in the quietest room on Earth?

Some people believe that they can go crazy in this room. Because silence can also be a form of torture. When there is no sound coming from outside, the only thing you can hear are the sounds coming from your own body. It is the sound of rustling clothes, the sound of swallowing saliva, the sound of breathing, the heartbeat and even the sound of blood flowing in the brain.

Do you really go crazy after 45 minutes in the quietest room on Earth?