24 April 2012
The Effect of Cell Phone Radiation
America has grown significantly since 1973, the year the first handheld mobile phone was invented. Previously, bulkier versions of portable phones were introduced, but were considered impractical and the price for making a call was too high. Originally called a “Handie-Talkie”, two-way radios played an important part in military communication in 1940, but could only be used within short distances of each other, which still provided a need for long-range talking. On April 3, 1973, Dr. Martin Cooper made the first analog mobile phone call using a device he designed with Motorola. The heavy prototype model weighed 2.5 pounds and had a talk time of only 30 minutes per 10 hour charge. Now in the present day, modern cell phones, such as the iPhone, Blackberry, and other Smartphones, weigh around 5 ounces and offer long battery life with the usual 2 hour charge. The weight and battery life are not the only specifics that have changed over the past 39 years; multiple functions and increased calling range have made mobile communication simpler and more convenient.
However, with new features arose a new problem: radiation. Almost every cell phone emits a certain amount of radiation, ranging between 0.1 and 1.6 watts per kilogram that enter the body whenever using a phone, also called specific absorption rate (SAR). This radiofrequency energy is a form of electromagnetic radiation, similar to the level of microwaves. As defined by HowStuffWorks.com, the electromagnetic radiation is divided into two categories: ionizing radiation and non-ionizing radiation. The ionizing radiation is used in occurrences such as radiation therapy and is known to increase the risk of cancer, whereas the latter produces less-harmful rays. These non-ionizing rays, however, still have consequences.
The RF (radiofrequency) energy affects the tissue around the ear that the phone is used by, according to a...