Ingles

El primer celular creado en 1973 pesaba más de dos kilos.
The man who invented the cell phone
 The first cell created in 1973 weighed over two kilos.
Martin Cooper may not be a household name, buthis invention is known for more than half the world's population has a cell phone.
The concept of a handheld phone was in his brain as a child and, with the help of a team of Motorola, the firstmobile handset was born in 1973. It weighed more than two kilos.
When standing on a street in New York, made his first phone call from a cell prototype, could not have been able to conceive the successthat would reach its invention.
Today mobile telecommunications industry has spread across the globe, developing a large collection of mobile technologies.
Clic Participle: How cell phones changedher life?
$ 10,000
Cooper, 81, told the program the BBC's Click technology to produce the first phone cost Motorola the equivalent of a million dollars now.
"We had to shut down virtually allengineering activities and put our whole company working on the phone and the infrastructure to make it work," said the American.
"Even in 1983, a cell phone cost about $ 4,000, which would be theequivalent of more than $ 6,500 in our days."
The battery life was 20 minutes, but then it was not a big problem because you could not hold the phone for so long
Martin Cooper, inventor of the cell.
Coopersaid his team met the challenge of crowding thousands of parts in a small phone first. "Industrial designers did a great job, but once the engineers had produced the first cell, a device had morethan a kilo and a half."
"A very substantial part of the first phone was the battery, weighing four or five times that of a current cell," he continued.
"The battery life was 20 minutes, but then itwas not a big problem because you could not hold the phone for so long," he said.
Once they began producing cell, the main obstacle was to adapt the infrastructure to small mobile calls then in use...