Today in 1973, Martin Cooper made a phone call from a prototype Dyna-Tac handheld cellular phone. The phone, which weighed about 2.5 lb, connected Cooper to Dr. Joel S. Engel, head of research at Bell Labs.
First Mobile Phone Call, 1973
Today in 1973, Martin Cooper made a phone call from a prototype Dyna-Tac handheld cellular phone. The phone, which weighed about 2.5 lb, connected Cooper to Dr. Joel S. Engel, head of research at Bell Labs.
The Story of Information 