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Philadelphia The heart of love,, has it. Many people in San Francisco want it…

Access to wireless broadband internet ( WiFi) appears too promising to be real. For a relatively low price you can connect to the Internet everywhere in a city. The entire cities

All you have to do is install WiFi antennas.

The argument in support of universal WiFi in cities is that it can lower digital divides. digital gap:

the lower your income the lower your income, the less accessibility to Internet and its data

resources. Cities such as Philadelphia along with San Francisco are actively trying to stop the

digital divide. One solution is WiFi.

But when it comes to weighing the options there is hardly any information about the possible health

risks. The widespread use of WiFi increases the problem of nonionizing

radiation. This burden, dubbed electrosmog by some, is made up of radiation that is long-term

exposure to low levels of nonionizing radiation emitted by sources we are familiar with

Like TV and radio signals, electrical and electronic devices, as well as the ubiquitous cell


Wireless Internet Access

Networks in the local area ( LANs) connect printers, computers modems, printers, and other

devices. Traditional LANs link physically by using wire cables. The messages

between computers and other devices that are controlled by devices

Also known as known as a called a router.

A wireless LAN eliminates the wire cable with the router to transmit and

receives radio signals. For a wired LAN to be used it is necessary to connect into the computer or another

It transforms the device converts it into an outlet for a wall. The wire connects an outlet to the router that manages

Signal traffic between devices connected to the network.

A wireless LAN is every device in the network is designed to transmit signals

to the router and then receive signals from the router and receive them back. Wireless routers generally offer a wide range of

100 to hundreds of feet. The range can be extended by the addition of an additional booster

which increases the strength of the signal.

Like any radio signal the closer close to your receiver (the router) the stronger the signal.

more powerful the more powerful the. Cell phones operate using the same principles. The different is

Cell phones operate at an unrelated frequency, and send out a higher signal than wireless


Radio Frequencies

Cell phones operate with frequencies within the 3-30 GHz, which is the same as microwaves.

ovens. WLANs work at a 10th of the range–0.3 -3 GHz. This is the spectrum of

Television broadcasts on UHF. GHz is a reference to gigaHertz, an industry standard measurement

of radio frequency radiation (RFR)–electromagnetic radiation created by

Sending an electrical current in alternating form through an antenna that is able to send an alternating electrical current through it. The greater the GHz,

The more efficient the current alternative.

The frequency alone does not indicate the impact of RFR’s effects. Just like you would

I would guess that how strong the signal is important. The strength of signals can be measured

in Watts in watts, a typical measurement of electrical energy. For instance, a 100 watt

The light bulb shines brighter due to the fact that it releases greater energy than 60-watt bulb.

Imagine the impact of waves on the beach: tiny waves spread out (low strength, weak

frequency) in comparison to large waves close to (high intensity the high frequency). The

The former will likely cause less harm in comparison to the latter.

The amount of radiation absorbed by RFR is determined by measuring SAR, a specific absorption rate. SAR is

expressed in milliwatts per kilogram (mW/kg) or body mass, or milliwatts/cubic

centimeter (mW/cm2) of body surface: the volume of the wave, and the amount of

your body , it hits.

Health Hazards

WiFi users dismiss health risks due to the SAR and power output are not a concern.

exposure is far below the minimum standards set by cell phones. This is a significant drop from the minimum standards set for. However, the cell

Phone standards are defined for short-term exposure of cell phones when it is in use.

to your to your. Also to that, the standards are established according to the heat (heating) result

of of the.

The effects of cell phones that are nonthermal are observed at levels lower than the current

US standards, which includes

Memory loss,

– sleep disruption,

– slow the motor and react times,

Immune function is decreased,

Disorientation in the spatial plane and dizziness,

– headaches,

A lower sperm count

– higher pulse and blood pressure,

DNA damage and decreased capacity for DNA repair,

Cell growth.

Another issue is that the exposure of cell phones is infrequent, whereas WiFi coverage is constant.

The exposure remains constant. A more precise comparison is dependent on the effects of cell phones.

broadcast antennas. They transmit the radio frequencies


The signal strength of an antenna is similar to the signal strength of a cell phone in very close proximity

range. The exposure isn’t an instant blast from a mobile phone but a continuous immersion of low

RFR strength. Alongside the health effects that have been documented with the use of cell phones,

The exposure from cell phone antennas includes

– higher pulse and blood pressure,

– sleep disruption,

Emotional effects, for example an increase in depression and irritability

Memory loss, mental fog

Vertigo and fatique, and

Risk of developing cancer is increased.

In light of these results due to these results, it is now the International Association of Fire Fighters (AFL-CIO)

In 2004, they decided that they would not allow mobile phone antennas to be used in firehouses.

RFR Hypersensitivity

A lot of discussion about RFR health impacts is seen as a concern for people

people who are who are hypersensitive. Hypersensitivity is the term used for allergies in the technical world.

and other immune system reactions similar to RFR. Instead of pollen, RFR

hypersensitivity can be a result of nonionizing

radiation. It appears that only a few suffer from the disease, while everyone else is free of the


Research conducted by Olle Johansson as well as Orjan Halberg from the Karolinska Institute in Stockholm

The evidence suggests otherwise. They studied the rate on cancers in Europe and in the US

They also found a striking correlation with the rise in cancers of certain types during the

20th Century , and RFR exposure determined by TV and radio broadcasts.

What the hypersensitive truly represent is just one aspect of the vast world of

consequences and risk. Like other environmental stresses RFR may have its own effects and risks.

individuals more than others. As the case with other environmental stressors the more severe the

The greater the burden on all of us, the higher the risk of being one of the “unlucky very few.”

Wireless LANs increase the burden of RFR already. Similar to the burning of more fossil fuels

can increase the amount of smog. In addition, adding an RFR increase the electrosmog. There’s no need to

expose your home or city to the greater stress caused by WiFi. There’s an

an alternative to wired LAN. The hype may make it appear less practical and less viable.

It’s more costly. However, what is an excellent night’s rest worth? or reducing the chance of


The WiFi Blues