مجله فانوس توانمندسازی جوانان از طریق رسانه
مطالب مرتبط
Submissions Sdyh
One cock silence
Relentless phone rang, it was extremely nervous. Each time the focus was not immune to noise and to write a few lines saying the verb and the subject back and forth. This time he jumped and hang up the phone. Sigh of relief and start again. I will read from his writings, but his eyes were on the ear could hear the sound of the TV from the next room. Angrily drove in a room together. But to no avail, so much street noise was decided to withstand heat and close the window of his room, but it was funny! The seams of the window, mosquitoes, they let the sound waves traveling! Took two hands to his ears, but since you did not write the third hand, they gave up and left!
found. His mouth was dry and had heart palpitations Vkhlash because they could concentrate on his writing.
What is noise?
A detailed discussion is pollution, air pollution, water pollution, and the years of the soil environment, we have heard a lot. We are forced to endure it, but it later “noise” is.
We all have different forms bearing noise. In some circumstances we produce the sound source, in some cases, a victim of it. Just like smokers and nonsmokers, both of smoke in the affected area. It is certainly a person who is the victim of an involuntary and unwanted damage is always greater.
Unfortunately, many of us forget the living space and the environment that belongs to all of us and does not belong to a particular group! Sometimes seeing “Bzrg·hay man!” And on people in public life the same way. Each of us in the situation we are forced to endure unwanted noise around me because we have not learned how to respect!
Noise and health
The World Health Organization has stated that crowded and annoying sounds can affect human health and the way he acts.
The people of addiction to painkillers and sleeping pills come.
Between noise and other pollution
The contamination of the following ways with other contaminants such as air, water, soil, etc. is different.
1. The transient noise in the sense that when the pollution of the environment will be preserved from harm.
2. Other types of pollution can be measured, though the sound can be any size, but the sound itself is difficult to measure and evaluate the overall sound working environment. And explain the real and actual risk of infection compared with other pollution threshold is difficult.
3. assess and interpret and describe the crowded and annoying sound is completely relative. While young vibrant Mvtvsyklt or the roar of the exhaust pipe of his car and enjoy unadulterated passion thrilled to see another person seriously hurt!
, life, environmental pollution is considered.
Aggravating factors of noise pollution
“Long” is only one component of a sound effect on humans. Time, place, time, influence, audio source, check the listener mental conditions or lack of control over his voice, the voice can be annoying or Roohafza.
Do not open a packet of cookies voice in the corner of a busy street, we do not attract attention. If you do not hear the same sound to it and a private library, a week before the examination!than it seems!
Unit of measurement of sound:
(DB) or dB unit is high in this paper, we deal with it, and the unit of measurement of sound intensity. This unit is logarithmic, meaning that 2 times 2 times the intensity of the unit is dB.
The height of a sound in the human ear, does not mean that relate directly to the unit dB sound intensity is inversely proportional to the distance Dard.k·h the communication function of the number of samples is associated with a volume of 100 dB at a distance of 20 meters by 10 meters Yes db94 is the equivalent of 88 dB at 40 m (2 to 6 units of distance reduces noise) and …
Noise and psychologists:
In addition, since the stress, depression, anxiety, or emotional conditions, such as divorce, unemployment, death of a dear and bring sounds more normal person gets tired and sees them busy.
The difference between “sound” and “noise” is?
Our reaction to the sounds are not the same.
Sound that is uncomfortable for one person may not for another enjoyable.He does not have the noise to start the day!
Crowded and loud ear damage creates more damage!
In addition to hearing the noise, could cardiovascular disease, rapid heartbeat, increased blood pressure, digestive problems, low intelligence and low power memory, irritability, loss of vision, pupil dilation and created.
One of the problems caused by noise can be caused by eating habits and insomnia in the big cities, many people involved with it.
Crowded and insomnia
hours or more, we hear them !!
Noise reduced sleep time, or increasing the number of awakenings and is a famous quote from waking.
In order for a person’s voice can not sleep insomnia! Several factors are important.
1. The type of sound and noise (eg voice or the voice of a nightingale flies buzzing!)
2. Repeat it (ringing sounded an hour or 5 hours 5 minutes of each other)
3. The term (voice poured in a glass of water or milk dripping sound of dripping water is drawn.)
4. intensity (sound normal breathing room in the dormitory or the sound of his heavy snoring)
5. The threshold of a person (the person to be awakened by the sound intensity of 35 dB to 90 dB, but the other person comfortable sleeps and does not bend to the eyebrows.)
6. stages of sleep or deep sleep that we get the sleep we see seven kings sleep is very important. The person on the stage of deep sleep to wake up to the need for higher intensity of sound.
– Of course, other variables such as age, is also effective.
– Motivation for waking too important.
But some others do not step on the sleeping children even at home!
The severity of several different types of sound:
– Sounds of the house quiet and not crowded apartment db 20
– Normal speaking voice db 40
– Phone ringtone db 60
– Normal fan noise is not bad !! db 75
– The volume of traffic db 100
– Noise from aircraft engine db 200-100
