History of Transistor

John Bardeen, William Shockley, and Walter Brattain, were all scientists at the Bell Telephone Laboratories in Murray Hill, New Jersey. They were researching the behavior of germanium crystals as semi-conductors in an attempt to replace vacuum tubes as mechanical relays in telecommunications. The vacuum tube, used to amplify music and voice, made long-distance calling practical, but the tubes consumed power, created heat and burned out rapidly, requiring high maintenance.

Show on the right in the picture for scientists.

Now answer the questions and add these to the comment page below the post.

1. Who are discovered the transistor ?
2. Where was discover the transistor? 
   

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Transistor