Nick Holonyak Jr., the person widely credited with the development of the first visible-light LED, the device that now lights up countless clocks, traffic signals, and other electronic displays, might be one of them. On Tuesday, the Royal Swedish Academy of Sciences awarded this year’s Nobel Prize in Physics to three inventors of the blue light-emitting diode. Holonyak isn’t exactly complaining that he isn’t among them; his objection is that his 1962 invention has never been singled out for recognition by the academy.


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