Anechoic chamber in the laboratory Orfilda 99 absorbs 99% of sound

It is said that "silence - Gold", but there is room in the state of Minnesota in the United States, which is so quiet, that after a while you will be there just unbearable. Room blocks 99, 99 percent of external sounds, and no one has yet been able to make more than 45 minutes while there.

The most peaceful place in the world according to the Guinness Book of Records is located in South Minneapolis Laboratories Orfild (Orfield Laboratories). To achieve exceptional quietness, in a room used fiberglass acoustic platform one meter, double walls of insulated steel and concrete thickness of 30 cm.

The company's founder and its president Stephen Orfild (Steven Orfield) said that when it becomes so quiet, your hearing starts to adapt.





"The quieter the room, the more things you hear. You begin to hear knocks on your heart, sometimes as moving your lungs or your stomach grumbles. In an anechoic chamber you become the sound, "- he explained.

Orfild explained that it was very confusing, and makes you sit in one place. We are guided by the sounds that we hear when we go. In the anechoic chamber, you do not have any signals that allow you to balance and maneuver. If you find yourself here for half an hour, it is best to remain in the chair.

This camera is used by many manufacturers to test their volume products, such as heart valves, sound display of the mobile phone, the sound switch on the dashboard of a vehicle. Also it is used to determine the quality of sound.

But for a man such a room can become an ordeal. After a few minutes of being in it, you get used to the absence of sound, beginning to catch all weaker sounds. In severe cases, a shutdown of the senses can drain you. NASA astronauts are trained by placing them in a tank filled with water in the room, after a while begin to experience hallucinations, since our body is trying to create a sound from scratch.

With the lights out, it's a long time, which is able to withstand a person in this room is 45 minutes. The founder was able to make only half an hour. According to him, the most distracted person is not noise, and silence.

via factroom.ru