Do Mobile Phone Radiations Affect the Human Body
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Millions of Americans use the Mobile phone handsets as an integral part of their life. These Mobile Phones use the Electromagnetic Radio waves as the means of communication. There are several claims of these waves being energetic and harmful to the body. This article tries to gain further insight.
How Radio Waves Affect our Body: The Radio waves are placed on the extreme right corner of the electromagnetic spectrum. It is because they are the least energetic electromagnetic waves. Research shows that exposure to radio waves for long duration can only heat up the body tissues. The process of Thermoregulation in our body is competent enough to bring back the normalcy quickly. Apart from this aspect of mobile phone radiation, all the claims made are mostly speculations without credible research facts to substantiate. This fact is endorsed by the World Health Organization (WHO) too. However, it is keeping a close look on this topic of Mobile Phone Radiation and Human Health. It established the International Electromagnetic Fields (EMF) Project to gather more scientific evidence on the possible health effects of electromagnetic waves on humans.
What are Electromagnetic Waves: In Physics, any disturbance caused in a medium produces waves. Electromagnetic waves are electric and magnetic field disturbances. They can travel in vacuum and in air. A unique property about these waves is that they can self propagate themselves once they are generated by a source. Otherwise, waves cannot propagate much in a medium without any source to back them up from time to time. It is because the medium generally opposes the propagation.
What is Electromagnetic Spectrum: Energy or Radiation in Physics can be treated as waves or as particles. The choice is based upon the convenience in understanding and explanation. Some aspects associated with energy are easy to understand and explain by treating it as waves. And in other cases, treating energy as particles proves handy. All the electromagnetic waves are arranged in an orderly manner from the most energetic one to the least energetic. This orderly arrangement of electromagnetic waves is called the Electromagnetic Spectrum. The Radio waves used in mobile communication are part of this electromagnetic spectrum.
How Electromagnetic Waves are helpful in Communication: According to Principles of Physics, changing electric field produces magnetic field. Similarly changing magnetic field in turn produces electric field. In this way, once a source of electromagnetic waves generates these waves, the propagation aspect is taken care of by these waves. A Scottish Physicist James Clark Maxwell predicted the presence of these waves theoretically and a German Physicist Heinrich Hertz confirmed them experimentally. Because of this unique ability of self propagation, electromagnetic waves are used in communication. All these waves travel with a constant velocity as that of the speed of light.
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