Topics: Electromagnetic radiation, Agriculture, Electromagnetic spectrum Pages: 5 (1297 words) Published: June 24, 2013

In a country like india agriculture is a majour source of income still today a majourity of the population is living in the rural areas and depending on the agriculture for their earnings. This pattern has been followed for many years and people work on their basic instrument depending fully on the mercy of weather. And today to ADD TO THEIR VOWS THE EM WAYS BEING EMMITED FROM THE CELL TOWERS ERRECTED FOR MORDANIZATION IS MAKING THEIR EFFERTS useless.

The impact is not visible instently but the long exposure to em ways leads to detoration of the quality of crops, of the health of the birds, insects and farm animals. Thus disterbing the whole of the ecosystm.

In this project our grop had tried to asssemble data showing the impact of em waves on ecosystem resulting in the hamperring of agriculture which is a very dangerous situation for an agriculture based country like india.

We hope these findings throw some light on the grave situation and let people think about the alternates.

Electromagnetic waves or radiation

The electromagnetic waves that compose electromagnetic radiation can be imagined as a self-propagating transverse oscillating wave of electric and magnetic fields. This diagram shows a plane linearly polarized EMR wave propagating from left to right. The electric field is in a vertical plane and the magnetic field in a horizontal plane. The two types of fields in EMR waves are always in phase with each other with a fixed ratio of electric to magnetic field intensity.

Electromagnetic radiation (EM radiation or EMR) is a form of energy emitted and absorbed by charged particles which exhibits wave-like behavior as it travels through space. EMR has both electric and magnetic field components, which stand in a fixed ratio of intensity to each other, and which oscillate in phase perpendicular to each other and perpendicular to the direction of energy and wave propagation. In a vacuum, electromagnetic radiation propagates at a characteristic speed, the speed of light.

History of discovery

Electromagnetic radiation of wavelengths other than those of visible light were discovered in the early 19th century. The discovery of infrared radiation is ascribed to William Herschel, the astronomer. Herschel published his results in 1800 before the Royal Society of London. Herschel used a glass prism to refract light from the Sun and detected invisible rays that caused heating beyond the red part of the spectrum, through an increase in the temperature recorded with a thermometer. These "calorific rays" were later termed infrared.

In 1801, the German physicist Johann Wilhelm Ritter made the discovery of ultraviolet in an experiment similar to Hershel's, using sunlight and a glass prism. Ritter noted that invisible rays near the violet edge of a solar spectrum dispersed by a triangular prism darkened silver HYPERLINK "http://en.wikipedia.org/wiki/Silver_chloride"chloridepreparations more quickly than did the nearby violet light.

these are very harmful rays for humans and other organisms they can cause multiple diseases including cell malfunction and skin cancer. but currently these are the rays emitted by cell sites causing danger to masses of popullation

Cell site
A cell site is a cellular telephone site where antennas and electronic communications equipment are placed, usually on a radio mast, tower or other high place, to create a cell (or adjacent cells) in a cellular network. The elevated structure typically supports antennas, and one or more sets of transmitter/receivers transceivers, digital signal processors, control electronics, a GPS receiver for timing, primary and backup electrical power sources, and sheltering. Different kinds of cell sites

Temporary set-up

Camouflaged monopole, called "monopalm", in Tucson, Arizona Colored to blend in with host building in Sopot, Poland Although cell antennas...
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