I 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 from fantasy to reality ...

The first mobile call was made on this date 46 years ago: April 3, 1973. Martin Cooper, a Motorola employee, made the call on Sixth Avenue in NYC. He called a friend who worked for AT&T at the time.

Martin Cooper, who made the first mobile phone call in 1973, just published a book about that historic event. The book chronicles the development of the first mobile phone and the rivalry between ...