The first mobile phone call was 75 years ago – what it takes for technologies to go from breakthrough to big time
- Written by Daniel Bliss, Professor of Electrical Engineering, Arizona State University
An engineer demonstrates a car phone five months before the historic first call on a competing company's commercial mobile telephone service in 1946.Bettmann via Getty ImagesI have a cellphone built into my watch. People now take this type of technology for granted, but not so long ago it was firmly in the realm of science fiction. The transition...