Researchers at the McKelvey School of Engineering at Washington University in St. Louis have developed ink pens that allow anyone to handwrite flexible, stretchable optoelectronic devices on everyday ...

Below are the ten pens I stand by for writing, drawing, or both. Having tested and vetted all of them, plus countless others, ...

Conductive ink has been around for a while and is a tool for printing flexible electronic circuits on various surfaces. One challenge with current conductive ink is that the ink can be expensive and ...

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 ...