Selasa, 04 Januari 2011

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Negative Impacts Of WIFI (Wireless Fidelity)

Negative Impacts Of WIFI (Wireless Fidelity) - Wi-Fi (wireless fidelity), better known as wireless local networks increasingly popular, especially in developed countries and developing countries. With wi-fi people can go to the Internet without the hassle of connecting the cable from your computer to a phone line.

Behind the convenience offered wi-fi, there are some who think public confidence wi-fi have a negative impact on health. Those who do not agree with the presence of wi-fi reasoned electro magnetic radiation from wi-fi can cause pain in the head, sleep disturbances and nausea, especially for those who electro sensitive. But was it wi-fi health hazard?

Fear of adverse effects on health wi-fi is countered British scientists. As disclosed Sir William Stewart, chairman of the Health Protection Agency, told the BBC Panorama Programme, there's nothing to worry about with wi-fi technology. There was no definite evidence that says, devices such as mobile phones and wi-fi cause impaired health.

The same thing also disclosed Professor Lawrie Challis, of Nottingham University. In his statement to the BBC, Professor Challis, who served as chairman of Mobile Telecommunications and Health Research (MTHR) said: "electro-magnetic radiation from Wi-fi is very small, low-power transmitter too, but it is still some distance to the body.

"It could be electro-magnetic radiation is very close to the body, when we assume the laptop, but in my observation every parent will ask their children not to overuse their phones and always asked them to put the laptop on the table, not in his lap, if they surf too long. "

To support this statement, the BBC Panorama team visited a school in Norwich, who has a thousand students, and try to compare the levels of radiation from mobile phones and the use of wi-fi in the classroom. The results show wi-fi radiation in a classroom three times larger than the jet issued cell phone.

But the psychological health expert Professor Malcolm Sperrin told wi-fi signal greater than three times the radiation of mobile phones in a school is not relevant, because it has not found its influence on health.

"Wi-fi is a technology that uses radio waves, electro magnetic low, which is comparable to a microwave oven, even 100 thousand times lower than the microwave."

This type of radiation emitted radio waves (wi-fi), microwaves, and phones have shown increased levels of tissue temperature is very high, which is called a thermal interaction, but there is still no evidence that level cause damage.

Health Protection Agency says sitting in a room that has a hotspot for a year comparable to the radio waves emitted during a conversation with the phone for twenty minutes.

"Radio waves have become part of our lives for nearly a century or more, but if there is a significant disruption to health, there must be studies that will record it, and during these various studies still have not found evidence of transmission to health wi-fi.

The same thing also supported by Professor Will J Stewart, fellow of the Royal Academy of Engineering, who said: "Knowledge science have studied the influence of mobile phones for health for many years and concerns about the impact of mobile phone radiation is still very small.

"So also with the wi-fi, if used within reasonable limits there would be no effect on health in a long time. But that does not mean that all electro-magnetic radiation is not dangerous, such as sunlight proven to cause skin cancer, so if you use a laptop while sunbathing on the beach, it's good to find a shady place, "added Sperrin who said that until now there is still no sufficient evidence mean negative impact of wi-fi.

But more worried Sperrin not on wi-fi wave, but the behavior in the use of laptops, and laptop heat generated in some sensitive parts of the body, which affect health.

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