Jade

= Mobile phones and our health? =

I think phones have an effect on people because certain people get a sore head if they have lengthy conversations on the phone and other people feel sick when they turn their phone on, but these effects are only for certain people.

The biggest worry of radiation is the current warming up or cooking effects because there is a small level of power in the phone so the brain may get cooked and hurt but except from small level of power radiation it is definite that there is no increase to the heat in your body to the brain.

http://www3.ntu.edu.sg/home/eylu/fdtd/phone0.htm

what is electromagnetic radiation?

Electromagnetic radiation is a combination of oscillating electric and magnetic fields spreading through space and carrying energy from one place to another. **http://www3.ntu.edu.sg/home/eylu/fdtd/phone0.ht**m

====**How mobile phone calls travel? ** ==== . When you speak into a phone, a small microphone in the phone changes the sounds of your voice into a matching up and down pattern of electrical signals. A microchip inside the phone turns these signals into strings of numbers. The numbers are crowded up into a radio wave and shone out from the phone’s antenna/Arial

=**how does a mobile phone use electromagnetic radiation?** = =well a mobile phone uses high frequency microwaves. so when you call someone from your mobile sends out microwaves and the microwaves go to the satllite and then goes to the person you called and they might pick up. if we did not have electromagnetic waves then no phone calls or text messages would come through. = ==