Electromagnetic waves have no great harm
Vast universe, boundless starry sky, electromagnetic wave space than the atmosphere of space, is infinity light years proportion, countless extraterrestrial stars have all kinds of electromagnetic wave amplitude source, and its density is not comparable to the air. Cosmic space, the sun produces light radiation are insignificant, can imagine the power of electromagnetic waves. In the atmosphere, lightning, the world's broadcasting stations, communications (letter), navigation equipment, and intentionally or unintentionally created in the interference wave intertwined together, bustling full of space, people live in the sea of electromagnetic waves.
Electromagnetic waves are ubiquitous, electromagnetic radiation sources can be divided into natural electromagnetic radiation sources and man-made electromagnetic radiation sources. Lightning, sunspot activity, cosmic rays and other electromagnetic radiation, which is a natural source of electromagnetic radiation; and man-made sources of electromagnetic radiation are mainly various types of radio equipment, including industrial, scientific and medical equipment. We use the alternating current frequency 50 hertz, one because the frequency is low, can not be spread in the air; two because the power is large, the cost of transmitting and receiving is too high, so in the wire transmission. But alternating current is generating a large number of electromagnetic waves every moment during the process of generating transmitting use.
To long wave, for example, 30 kHz a second to have 30,000 cycles, each wavelength will have 10,000 meters, a steady stream of diffusion to the surrounding area, that is, a band of electromagnetic waves is enough to scare people. Not to mention the universe of electromagnetic waves is too much, with light years can not count the large team.
As for the harm of electromagnetic waves on the body, compared with other such as air pollution, water pollution, food pollution, dust, etc., should be insignificant. Those who have worked for a long time in an environment with high magnetic fields and strong amplitude radiation also have no occupational diseases in terms of electric radiation. Long-term living in the high-voltage lines, decades also do not see and other people have abnormalities, within a safe distance, high-voltage lines have no effect on other organisms. Electromagnetic waves have a great impact on people, the scientific sector has never stopped exploring and researching on it. National electromagnetic wave safety standards: long, medium and short-wave electromagnetic radiation less than 10 volts / m, ultra-short-wave electromagnetic radiation less than 5 volts / m, microwave electromagnetic radiation less than 10 microwatts / square centimeter. It is the result of previous and modern scientific research. State-approved production of mobile telephones, wireless walkie-talkies, indoor wireless telephones, radio and television broadcast transmitters, microwave and satellite communication devices, radar, radio remote control and other types of radio equipment, as well as, for example, microwave ovens, high-frequency eye protection lamps, medical magnetic *** vibration equipment, helium arc welding machines, radio frequency heaters, high-frequency thermal laminators, AC high-voltage power transmission lines, changeover switches, electric motors, generators, Television, computers, etc. are electromagnetic radiation, the harm to people is far below the national standards, can be used safely, will not cause harm to people. Playing the computer to watch TV and other close injury to the eyes, mainly not electromagnetic wave damage, is fatigue injury component accounted for more.
Objective conditions of the natural generation of electromagnetic waves, is constantly generated by the process of continuous attenuation, man-made electromagnetic waves, in recent years, although a significant increase, but in the electromagnetic wave family, this increase is insignificant. The scientific community to speak of serious electromagnetic wave pollution, mainly does not refer to the damage to the person refers to the abuse of man-made electromagnetic wave, touching the intrusion, the occurrence of accidents increased to strengthen the management and so on.
In all the electromagnetic wave damage to the human body, cell phone is the most serious, mainly because the phone in the call, is close to the ear and head, is the most sensitive parts of the human body. If you're not even afraid to use your cell phone, you shouldn't have to worry about anything else.
Wish you believe in science, respect science, do not fear electromagnetic radiation, fully enjoy life.