Take a tour through the world of the light-emitting diode and learn - who invented it, how to use it, and how to make your own. more Make presents: The Resis...
Light Emitting Diode (LED)
MAKE presents: The LED
LEDs and OLEDs - How it Works, Inventors
How LEDs work
23. Light Emitting Diodes - 2 (LEDs - 2)
Organic Light Emitting Diodes
Exploring LEDs (Light Emitting Diodes)
Preparation Of An Organic Light Emitting Diode
The First Light Emitting Diodes
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