Movile Phone (Positive& Negative point)

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[Positive point ]

Mobile phone is a useful device that you can carry anywhere for communication.

- Uses
We can make a call and receive , send and receive text massage,take a picture, schedule arrangement, planner, using it anywhere.

- Effects
Whoever have an easy communication, keeping securits and multitasking.

- Physical characteristics
There are a lots of designs, which are small size and handful, various color, flat, small screen, buttonish

- Similar things(mobile phone)
Similar things : wireless telegraph, beeper
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[Non-positve point]

Since the introduction of mobile phones, concerns have been raised about the potential health impacts and others from regular use.

- Impacts of human health
For instance, one study that reviewed the link between cellphones and sperm quality found that heavy mobile phone users had significantly less viable sperm .
A prospective study of 13 normal men found that significantly increasing their mobile phone use caused a marked short-term reduction of sperm quality.
Men who use mobile phones on a regular basis lose about 30 percent of their active sperm cells. Those who carry their mobile phones in pockets
of their pants are putting their potency at great danger.
Scientists say that even in sleep mode mobile phones are harmful.

- Safety concerns
Commercial airlines have prevented the use of cell phones and laptops, due to the fact that the frequencies emitted from these devices may disturb the radio waves contact of the airplane.

- Etiquette
Most schools have prohibited mobile phones in the classroom, due to the large number of class disruptions that result from their use, and the potential for cheating via text messaging.
possession of a mobile phone in an examination can result in immediate disqualification from all that student's subjects.
The issue of mobile communication and etiquette has also become an issue of academic interest.

- Use by drivers
The use of mobile phones by people who are driving has become increasingly common, either as part of their job, as in the case of delivery drivers who are calling a client, or by commuters who are chatting with a friend.
Officials from these jurisdictions argue that using a mobile phone while driving is an impediment to vehicle operation that can increase the risk of road traffic accidents.
Other research has found that using a mobile phone while driving may reduce the driver's concentration and reaction time.

- Environmental impacts
Like all high structures, cellular antenna masts pose a hazard to low flying aircraft. Towers over a certain height or towers that are close to airports or heliports are normally required to have warning lights. There have been reports that warning lights on cellular masts, TV-towers and other high structures can attract and confuse birds.