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https://epedia.ro/2014/12/15/cand-si-cine-a-descoperit-laserul-ce-este-si-la-ce-este-utilizat/
Cand si cine a descoperit laserul? Ce este si la ce este utilizat? - ePedia
Dec 15, 2014 - In 1960 fizicianul Theodore Harold a anuntat prima "emisie stimulata" realizata cu ajutorul unui cilindru de rubin iluminat cu un flash puternic. De la o
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