A hand stencil left on an Indonesian cave wall at least 67,800 years ago may reveal how and when ancient humans reached a lost continent known as Sahul that once linked Australia with southeast Asia.

Halloween is just around the corner, and with it, we have a lot of spooky things to look forward to, from costume parties with friends to horror-movie marathons at home. But before it gets too late, ...

This project, sent in by [Henk], goes through a few different ways to make a solder stencil using a vinyl cutter, a CO2 laser, and a fiber laser. The project starts with identifying a method to ...