Don Posted February 13 Share Posted February 13 If you've never watched the Veritasium channel on YouTube, well, I dare say many here would find it interesting. For example, why was it almost impossible to make the blue LED? My take away? Had it not been for one stubborn person, we might not be as far along in the LED lighting world as are currently. Link to comment Share on other sites More sharing options...
k6ccc Posted February 13 Share Posted February 13 I watched that one yesterday. Interesting history. Link to comment Share on other sites More sharing options...
Wayne K Posted February 22 Share Posted February 22 Interesting, thanks for sharing the link Wayne Link to comment Share on other sites More sharing options...
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