Meet Marty Cooper,the inventor of the first mobile phone.He invented the hand held phone in 1973,the phone's weight was 2 kilos.
When he stood on a New York street and made the first phone call from a prototype cellular phone, he couldn't have conceived how successful it would become.
Producing the first phone cost Motorola the equivalent of $1m in today's money.
source:bbc.co.uk
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