The holy grail of getting solid state white light from light emitting diodes (LED) was elusive. To produce white light from these solid state devices, you need blue diodes. Blue LEDs didn’t exist; physics made it hard and scientists and engineers could not beat the blue diode problem. Until . . .
Some food for thought: “Preparing our children to be good environmental citizens is some of the most important work any of us can do . . . and (can) quite literally sustain our world.” – U.S. Education Secretary Arne Duncan. From a voice a little closer …Continue Reading Your Turn to Shine: Energy & Environmental Education Awards
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