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º¦¸¤â¾÷³q¸Ü ¹º¤U³q°T¥v«nªº¤@¡u¸Ü¡vRinging in a New Era: The First Cellphone Call
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On April 3, 1973, Martin Cooper¡¦s voice echoed through the streets of New York City. This marked the birth of a new era in communication with the first-ever cellphone call. Cooper held a device the size of a brick. He called his rival, Bell Labs¡¦ Joel Engel, to declare that his Motorola team had built a functional, portable phone. Before the first call, Motorola and Bell Labs were racing to build a cellphone. The intense rivalry fueled mobile communication advancements.
After the first cellphone call, it still took another decade for personal cellphones to reach consumers¡¦ hands. Production challenges and government regulations delayed the devices¡¦ arrival to the public market. The first cellphones to hit the market allowed for conversations of 30 minutes but required a 10-hour recharge period. They cost US$3,900, measured about a foot long, and weighed around two to three pounds. The bulkiness and expense of these early phones kept them from widespread use. However, as technology progressed, mobile phones became lighter and more affordable. These days, cellphones have become an essential part of many people¡¦s lives.
Cooper, who is now 95 years old, knew back in the 1970s that cellphones would affect just about everyone. He said in an interview that he and his team used to joke that someday, phone numbers would be assigned at birth and missed calls would come with deadly consequences. Their predictions hinted at how important their invention would become. The first cellphone call ushered in a new age of communication, one that would connect us in ways we never imagined.
What Did You Learn ?
What was the purpose behind Martin Cooper¡¦s historic call?
What slowed down the process of bringing the first cellphone to the public?
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