Engineeringness on MSN

How Do LEDs Turn Electricity Into Light?

LEDs are tiny components found in phones, TVs, lights, and displays—but how do they actually glow? This video explains how ...
WPLG Local 10

Light Up the Beach illuminates Fort Lauderdale with 50,000 holiday lights

Crews were busy Wednesday preparing for one of Fort Lauderdale’s most cherished seasonal traditions: Light Up the Beach, an ...

I Used This LED Teeth Whitening Kit—And I’ll Never Use Strips Again

Whitening your teeth with an LED light charged through your smartphone sounds like science fiction. But could it whiten teeth ...