The cell phone - MRI scanner - The walkman (1 ene 1970 año – 1 dic 1980 año)

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The first invention is the cell phone, invented in 1973 by Martin Cooper, Motorola was the first company to produce a handheld mobile phone. On April 3, 1973, Martin Cooper. Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment. Martin is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management. After the cell phones is the MRI scanner, the MRI scanner was invented in 1977, by Raymond Damadian, Raymond is an American physician, medical practitioner, and inventor of the first MR Scanning Machine. Raymond's research into sodium and potassium in living cells led him to his first experiments with nuclear magnetic resonance which caused him to first propose the MR body scanner in 1969. Last but not least is the walkman, the walkman was invented in 1979 by Sony Corporation, Sony Corporation is is a Japanese multinational conglomerate corporation headquartered in Konan, Minato, Tokyo. Its business includes consumer and professional electronics, gaming, entertainment and financial services. The walkman was a music player with chunky buttons, headphones and a leather case. It even had a second earphone jack so that two people could listen in at once.

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