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Explore Telephone Solar, Tone Telephone, and more! Dr. Shirley Jackson invented solar cell, fiber optic cables making caller id and call waiting possible, portable fax, and touch tone phone!
The Cell Phone: Marty Cooper's Big Idea. Editor's note: Though Martin Cooper and his team at Motorola built and demonstrated the first cell phone, there were many fathers of the technology involved in transmitting calls. Prominent among them: Amos Joel, Jr. of AT&T/Bell Labs, who created the system that switches signals from one cell tower to another - the basic component that lets callers talk while moving.