[XTronical]’s idea for a laser-based persistence of vision gadget failed, but the basic idea seemed sound. A row of inexpensive red lasers shine into a spinning mirror and are reflected onto a distant ...

The best part of these contests is that we get people to actually show off what they’ve been working on! Check out the POV clock which was sent in by [Taciuc]. He doesn’t have a webpage for it, but he ...