Friday, November 20, 2009

who create the phone

Alexander Gram bell DID create the first cell phone, he was the inventor of the telephone.

aMrtin Cooper invented the cell phone.



http://wiki.answers.com/Q/Who_created_the_first_cell_phone

Thursday, November 19, 2009

When was the phone created

1973 First portable cell phone is made.
1976 Common channel interoffice signaling.
1978 public tests of a new cellular phone system.
1900 Telephone transmission extends across and between major cities.


http://www.greatachievements.org/?id=3625

who is credited for the ivention of the phone

My historcial innovation is the phone.
Ask who really invented the telephone, and you may get the name of a German, Philipp Reis, not Alexander Graham Bell. 

Reis was a 26-year-old science teacher when he began work on the telephone in 1860. His essential idea came from a paper by a French investigator named Bourseul. In 1854 Bourseul had explained how to transmit speech electrically. He wrote:

Speak against one diaphragm and let each vibration "make or break" the electric contact. The electric pulsations thereby produced will set the other diaphragm working, and [it then reproduces] the transmitted sound.
http://www.uh.edu/engines/epi1098.htm