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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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13 dic 1946 anni - 1947

Descrizione:

William Shockley, John Bardeen and Walter Brattain of Bell Laboratories invent the transistor. They discovered how to make an electric switch with solid materials and no need for a vacuum.

Aggiunto al nastro di tempo:

22 ago 2018
0
0
627

Data:

13 dic 1946 anni
Adesso
~ 78 years ago