Cellphones Michaelangelo & Lanz

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Last updated 8 years ago

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Cellphones Michaelangelo & Lanz

Cell Phone

Mobile phones are sophisticated two-way radios that use radiofrequency (RF) signals to transmit and receive voice and data. When you make or receive a call, your mobile phone communicates with a network of low powered radio transceivers called base stationsposter yourself.www.vodafone.com

These are some of the phones of the 21st century

These are some phones too

Who first invented cell phoneDoctor Martin Cooper invented the modern cell phone. He invented the technology responsible for the cell phone when he was the Director of Research and Development at Motorola. Dr. Martin Cooper is also known as the first person to make a call on a cell phone. His revolutionary call took place in April of 1973 in New York. He is currently the CEO of an antenna corporation..

How does a cell phone worksA cell phone is a special type of phone that is not connected to your telephone in the house and works both inside and away from your house.A cell phone turns your voice into a special type of electricity and sends it over the air to a nearby cell tower; the tower sends your voice to the person you are calling. Cell phones work well when they are near cell towers, but not so well if they are too far away from a cell tower.

A cell phone timeline

This is what cell phone looks like

Website:http://transition.fcc.gov/cgb/kidszone/faqs.html


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