Most of us who have dabbled a little in electronics will have made our own printed circuit boards at some point. We’ll have rubbed on sticky transfers, laser-printed onto acetate, covered our… ...

Millions of tons of hard-to-recycle electronic circuit boards are burned or end up in landfills—a replacement based on leaf skeletons could stem that waste.

A team of engineers from Hong Kong Polytechnic University have created a fabric knitted with wiring that can be worn and even washed.