They say 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 nobody has been able to make more than 45 minutes after having been there. The quietest 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 gets so quiet, your hearing starts to adapt . "The quieter the room, the more things you hear.
You begin to hear your heart pounding, sometimes as moving your lungs or your stomach is rumbling. In an anechoic chamber you become sound "- he explained. Orfild explained that it was very confusing, and makes you sit in one place. We focus on the sounds that we hear when we go.
In an anechoic chamber, you do not have any signals that allow you to balance and maneuver. If you find yourself here for half an hour, then it is better to stay in the chair. This camera is used by many manufacturers to their volume testing products, such as heart valves, sound mobile phone display, the sound switch on the dashboard.
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 more and more faint sounds. In severe cases, a shutdown of the senses can drain you.
NASA astronauts who train into a tank filled with water in the room, after a while begin to experience hallucinations, since our body is trying to create sounds out of nothing. With the lights out, it's a long time, which is able to withstand the people in this room, is 45 minutes.
The founder was able to make only half an hour. According to him, the most distracting person no noise, and silence.