First cell phone call 50 years ago, boom 10 years later

 On April 3, 1973, the first cell phone call was made from a

phone the size of a shoebox in New York City.

The protagonist of this historical moment is

"We at Motorola have done it, cellular telephony is a reality," says Cooper, in the first 'wireless' call made to his direct rival, Bell Labs researcher Joel Engel.

But it is only many years after that first phone call that the experiment manages to have a wider audience thanks to the assignment of the first frequencies and then to the marketing of the first mobile phones.

The successor of the prototype used by Martin Cooper is the DynaTac 8000X,

thus opening a new era in the telecommunications sector forty years ago but also in our lives.

The phone that allowed you to make 30 minutes of calls had a base price of $3995, was known in the industry as "the brick" and visible in many scenes of the 1987 film Wall Street with Michael Douglas. And Martin Cooper, born in 1928 , hasn't lost the desire to get involved in technology: the 94-year-old engineer continues to be 'connected' to his Twitter profile @MartyMobile and releases interviews.

He recently expressed concerns about phone addiction and the effects of the devices on children.