94-year-old former Motorola engineer Martin Cooper remembers inventing the cellphone 50 years ago
2023-04-03
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“Hi, Joel? It’s Marty Cooper.” Engineer Martin Cooper cradled a bulky object to his ear, listening. The gray device had two rows of numbered buttons between the ear and mouthpiece. An antenna poked from the top, reaching skyward to pick up invisible signals from the city’s jangling atmosphere. Next to the sidewalk, cars and taxis zipped down