The mobile phone

In 1973, Marty Cooper made the first public mobile phone call using his newly invented cell phone. Now, there are more mobile phones on the planet than people. Fourteen-year-old Becky, from Northern Ireland, asks Marty about that call and how his invention changed our lives. Producer: Tamsin Barber. World Wise Web is a co-production between BBC World Service and BBC Rewind. Music composed by Nick Thorburn