1. Are Cell Phones bad?
By Alexander Petersen

2. Radiation A phone sends microwaves for connection.
If you are in a building the microwaves have to through a wall which takes energy so it has to send more powerful instead.
If you are out side the radiation will be less because the microwaves can just travel to the tower.
Radiation

3. When is the Radiation the strongest/weakest?
The Radiation is the strongest when you start the call in a building because it has to get through all the walls.
After a time the Radiation will get less powerful.
Radiation is weakest out side when you are in a city because the tower is closer to you and the Microwaves don’t have to travel as far.
When is the Radiation the strongest/weakest?

4. How to use Cell Phones Safely
Make calls from outside.
Make sure you don’t press the phone it against your head when you start a call.
If possible use headphones to make calls.
DON’T use ear plugs without cable connection because then there is also Radiation.
Try to call with speaker.
How to use Cell Phones Safely

5. Thank you for listening