Mobile phones, which are indispensable in people's lives today, celebrated their 4th anniversary on April 3. Did you know who was the first to make a call from their mobile phone? To whom to call? What did it say?
According to a BBC report on the 3rd, on April 1973, 4, Motorola engineer Martin Cooper stood on the street of Sixth Avenue in New York, took out a phone book from his pocket, and then pressed a string of phone numbers on a "large, cream-colored device", and then put it to his ear, causing passers-by around to look sideways.
This was the first call made by man on a mobile phone, and the caller was Cooper's "old rival", Joel Engel of Bell Labs, the American telegraph company. Cooper triumphantly told him that he was calling him with a "personal, handheld, mobile phone." On the other end of the phone, Engel remained silent.
Cooper was interviewed by the media at the age of 94 and recalled the scene and speculated that Engel was actually "gritting his teeth" on the other end of the phone.
After another 10 years of research and development, the world's first commercial mobile phone, DynaTAC 8000X, was officially launched on the market. Ben Wood, head of the British Mobile Phone Museum, told CNN that the phone sold for $1,17 today.
"It can only make phone calls ... No texting, no photography, only 30 minutes of talk time, but 10 hours of charging, and only 12 hours of standby time. There is also an antenna 15 cm long on the fuselage. He said. The phone weighs 790 grams, almost four times the weight of the iPhone 14 phone.
Today, mobile phone functions have made a qualitative leap. Cooper believes that mobile phones still have more room for development, and perhaps in the future, artificial intelligence can independently compile or download mobile application software according to the actual needs of users. Mobile phones can also monitor people's health, improve quality of life, maximize productivity, and even advance peace processes and eliminate war, he said.
"The phone may not be able to do these things on its own," Cooper said, "but it will be an important part of this great future." ”
(Jing Jing, Xinhua News Agency micro report)