Anthony is a Toronto-based communications specialist with degrees in history and journalism who loves to use his research and interview skills to inform and entertain. He has over a decade of ...

Like phones, projector hardware is now built to outlast onboard software.

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...