Fifty Years Ago, A Bright Idea | WAMU 88.5 - American University Radio

Fifty Years Ago, A Bright Idea

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In October 1962, Nick Holonyak and colleagues at General Electric built the first practical light-emitting diode, or LED, that could emit visible light. Semiconductor LEDs are now a part of uncountable electronic devices. Holonyak discusses the invention, and his work since then.
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