DEL MAR, Calif. (AP) — Dick Tracy got an atom-powered two-way wrist radio in 1946. Marty Cooper never forgot it.

Martin Cooper, who changed the world when he invented the portable phone, says the communication revolution it sprouted has ...

Chester Greenwood invented earmuffs to battle the cold in Maine, US. By 18, he was a patent holder. He went on to file over ...

The simple landlines once used to call friends or family evolved into omnipresent glossy screens that flood our brain with ...

From his home in Del Mar, the inventor of the mobile phone, now 96, watches. Of one thing Cooper is certain: The revolution ...

“Dick Tracy” got an atom-powered, two-way wrist radio in 1946. Marty Cooper never forgot it.