Por un escritor de hombre misterioso
LEDs dominate lighting systems but their efficiency rests on the tricky production of blue light.
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Why A Blue LED Is Worth A Nobel Prize
Lightbulb moment for Nobel physicists: prize awarded for inventing blue LEDs, Nobel prizes
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Leeds set for interactive laser light fantastic - BBC News
Turkey's soft-spoken Kemal Kilicdaroglu takes on powerful Erdogan
Blue Lights - Meet the cast and creators of the new police drama set in Northern Ireland - Media Centre
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Portugal's tech boom challenged by tax change - BBC News
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