LEDs: Shining in the dark

50 years ago this month, UI alumnus Nick Holonyak Jr. lit up the world with the light emitting diode — the LED.
So, what is LED?
It’s the traffic light that warns you.
It’s the orange lettering on the MTD bus you’re taking.
It’s the glow of your laptops screen.
Holynyak’s invention pervades the modern world like few other technologies, and DI multimedia reporter Xing Zhuo sought to capture the everyday LED’s in their most brilliant environment: The dark.