by BBC
Martin Cooper may not be a household name, but his invention is familiar to more than half the planet’s population who own a mobile phone. The concept of a handheld phone was his brainchild, and with the help of his Motorola team, the first handset was born in 1973 weighing in at two kilos. When he stood on a New York street and made the first phone call from a prototype cellular phone, he could not have conceived how successful it would become.
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