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Happy Birthday Light Emitting Diode!

Here is a nice little story that turned up on the BBC News website a couple of weeks ago: LED at 50: An illuminating history.

Light Emitting DiodeSuch a thing as ubiquitous as the light-emitting diode (LED) is often overlooked. Indeed it’s hard to imagine that when I was a kid (and that's not so long ago!) they only came in red! – but these days they are used for practical illumination and employed in so many applications.

If you listen to the audio slideshow on the BBC site, you get to hear the inventor’s own thoughts and get a real insight into how such inventions are developed. And for a man whose discovery is now so important and useful, 83 year-old Nick Holonyak is a remarkably modest sort of chap…

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