Cell Phone Radiation
Introduction to Cell Phones
Today, cell phones have become widely used among our society. However, there has been some customer concern of human safety concerning the use of cell phones. Cell phones are know to emit low levels of radiofrequency energy in the microwave range while in use and while in the standby mode, which leads to many ethical issues.
History
It is very interesting to note that a cell phone is actually a radio. However, it is an extremely sophisticated radio. Alexander Graham Bell invented the telephone in 1876. Wireless communication can be traced back to the invention of the radio by Nikolai Tesla in the 1880's, which was presented by an Italian, Guglielmo Marconi, in 1894. By combining these two technologies people have come up with the making of the cell phone.
From the Dark Ages to Modern Times
Before cell phones were invented, people installed radio telephones in their central antenna tower per city and about twenty-five channels were available on that tower. The central antenna needed a powerful transmitter, enough to transmit forty to fifty miles. There were not enough channels for many people to use radio telephones. However, the cellular system, which is the division of a city into small cells, has allowed millions of people to use cell phones simultaneously. In the United States, a typical analog cell phone carrier receives 832 frequencies to use across the city. The phone carrier breaks up the city into cells, which are usually about ten square miles. Each cell has a base station which has a tower and a small building that contains the radio equipment. One cell in an analog system uses one seventh of the available duplex channels. Each cell phone uses two frequencies per call, thus, making it a duplex device. A duplex device means that one frequency is for talking while the other frequency is for listening and both people can talk at once. As for a simplex, such as a walkie talkie, two people communicate using the same frequency and only one person can talk at a time. In addition a walkie talkie usually has one channel while a cell phone can communicate on 1664 channels or more. Furthermore, a walkie talkie can transmit about one mile using a 0.25 Watt transmitter while a cell phone operates within cells, giving cell phones a wide range.
How Does It Work?
All cell phones have special codes associated with them, which are used to identify the phone, the phone's owner, and the service provider.
A cell phone, also referred to as a cellular phone, transmits electromagnetic radiation into the air. This occurs, when your cell phone has to connect to a phone, you want to have a conversation with, by checking for networks Electromagnetic radiation, which is often abbreviated as EMR, is a form of energy which when travels through space, displays a wave like behaviour. Electromagnetic radiation has electric and also magnetic field components. Electric fields are generated by electrically charged
Cell phones represent a type of technology that has been around for more than over fifty years; it has only been recently that many people began to use cell phones as a major part of their everyday life. In the past cell phones were for business people to conduct their business, but in today’s society every one owns a cell phone. Cell phones are interesting, useful and also play a major role in our life’s bringing people closer and keeping in touch with one another. Most people do not know and understand
must. Cell phones are one of the most practical inventions of time that make this possible. However, the subtle effect they have on our culture today, their invasion of our privacy, and the possible health risks they may cause are reasons to reassess the value of this intriguing device. While cell phones may be valuable, they are also potentially harmful. Cell phones are gradually affecting American culture today because they are becoming a key part of everyday life. The cell phone is "?an
technology? More explicitly can cell phones cause cancer? This question is the basis of this review. The researcher has compiled articles that cover this topic from diverse scholarly sources, and diverse countries. It is undeniable that cellular technology has become main stream. “It was estimated that there were 92 million cell phone users in the US, a number growing by one million every month.” (Frumkin, Jacobson, Gansler & Thun 2001). The arrival and widespread use of cell phones has peaked interest of
Cell Phones! What Causes Mobile Phone Radiation and How Does it Effect Your Body? Why is it so popular with young teenagers today? What problems do Mobile phones cause? Walking around in school to walking around at the shopping centre with your mobile phone may seem fashionable and trendy, but did you know that it might be causing you to get a cancer and brain damage threw lost of memory? . Many mobile phone holders do not realize it and it should be something everyone should be aware of. It may
Are Cell Phones Necessary? Sifting through his latest screenplay on the way to class, Geoff Yetter ignores the muffled sound of a computer-generated rendition of Johan Pachelbel’s Canon in D coming from inside his book bag. “Porcupined onions,” he curses to himself. “I’ll call them back when I’m free.” Yetter, a senior film and video studies major at the University of Oklahoma, said that although he has a cell phone, it is only because he considers them to be a “necessary evil.” “At
Cell Phones: Evolution Or Revolution? Since the beginning of the industrial revolution, the world has become a smaller and faster place. The time used to travel to far distances has decreased. The growth of new technologies, traveling and communicating has become simple daily tasks for many people. Through the growth of global communication, people have become closer to others across the globe, and business has gone world wide. One invention that came along with the technological revolution is
Cell Phone History - The Evolution of the Cell Phone Cell phones have become a part of mainstream culture. Recently they have become more affordable and accomplish much more than making and receiving calls. Along with the growing popularity there is also growing concerns about safety and health. In this paper we will address cell phone history and how they have evolved. We will discuss health concerns such as tumors and talking while driving. Finally, we will talk about all of the technology
another simply because the proposed cause occurred before the proposed effect. There was an article in The Washington Times about a Florida woman who developed a brain tumor behind the ear where she had customarily placed her cell phone, her husband blamed radiation from the phone and sued its manufacturer. After his 1993 appearance on CNN's "Larry King Show," other similar lawsuits followed. None succeeded however, and within several months, the controversy was forgotten.” This kind of health scare
While they are driving, a voice will direct them in the correct direction, all they have to do is follow the directions. Once they are home they put some food in the microwave. While waiting for the food to cook, they might call someone on the their cell phone or check their e-mail. All of the technology mentioned above has either come directly from the military or researched with the help of the military. The navigation system or G.P.S.(Global Positioning Satellite) is used by the military to help them
magnetic strip on credit and debit cards. These have a certain magnetic makeup, that is why you are to keep them away from other magnets. Magnets are also used in many motors, in such items like a dishwasher, DVD and VHS players, and a pager or cell phone vibrator. Magnets are all dipoles, that is they all have both a north and a south pole. No known magnetic monopoles exist. Looking at magnets from a basic point of view, opposites attract and similars repel. Magnetic field lines always move from
ever-changing audience. We’re sitting here on the steps of the Museum, hot and sweaty, watching the show. The clown can follow anyone: a slinky woman wearing pink ruffles, a kid with a mountain bike, a muscle-shirted dude talking Spanish on a cell phone, an old man walking his schnauzer, a big gray pigeon bobbing this way and that in search of food, and then taking flight. Now he slides behind high-school girlfriends, floppy-sandaled flirts leaning toward each other and flinging back their hair
Another wonderful quality about my spot on that swing is the fact that it is outside. It is out in the fresh air and natural light and away from technology. I never bring a cell phone or laptop there. I feel as if technology would somehow corrupt the natural beauty of the spot. I do not need to worry about telephones, cell phones, or e-mails in that spot. The beauty of nature is enough for me. It helps me to clear my mind and gives me time to reflect on what is really important in my life.
The Cell Phone Industry Cell phone manufacturers and service providers are at the core of the cell phone industry. These corporations are integral from their research and development endeavors to interactions with the consumer and the marketing of new products. The companies that control such factors of cellular phones are very numerous, so it is difficult to address all the cell phone manufacturers and service providers. However, we have focused largely on only the most significant cellular
the computer. Since the technology age began, computers have become a mainstay in American and world society as much as the telephone, the automobile, and the television. Almost every device has some type of computer in it. Whether it is a cell phone, a calculator, or a vending machine. Even things that we take for granted most cars since the 1980’s have a computer in it or a pacemaker. All of the advancements in computers and technology have led up to the 21st century in which “the greatest