Junyi Zhao in the McKelvey School of Engineering demonstrates using a simple ballpoint pen to write custom LEDs on paper (left). The same pens can be used to draw multicolored designs on aluminum foil ...

It’s a debate as old as time and has had the world’s finest intellectuals at war for years – what is better to write with, fountain pens or ballpoint pens? Okay, maybe it’s not that serious, but if ...

The invention of the printing press revolutionized duplication of the written word, giving the hands of tired scribes a break and making written material more accessible. A similar breakthrough has ...