MAGNETISM AND ELECTROMAGNETISM

                                                                                                      

                                          THE MOBILE PHONE


The mobile phone  is a device that transmit electrical signals with  electromagnetism the mobile phone was created in 1973.

                                                                                                                                                                      

                                                 

                                                                                                       

HISTORY OF THE MOBILE TELEPHONE:

 

 

Martin cooper was the inventor of the mobile phone, he was born the 13 of june, 1928 and he continue living. The cellular system was created to meet the demand for mobile communication.

                        USES OF THE MOBILE TELEPHONE

The telephone is use for: calls, sms, listen music,photos....
Soon the telephone will have: more capacity of storage, financial transfers...

                      MATERIALS OF THE MOBILE PHONE

Plastics 56%,Metal 25% ,ceramics and glass 16%, others 3%

                                    CURIOSITIES

There are many brands of mobiles phones like:
Apple, bq, Samsung, huawei, blackberry...

                                   

 

BY: CARMEN HERNANZ