Dot matrix printers, also known as impact matrix devices, are an older kind of printer that relies on an ink-soaked ribbon similar to that used in a typewriter. These devices were the most common ...

[RyderCalmDown] was watching a road painting vehicle lay down fresh stripes on the road one day and started thinking about the mechanism that lets it paint stripes in such a precise way. Effectively ...

Display makers might be obsessed with flexible and bendable screens, but such LCDs and OLEDs aren't the only ways to make an interesting display. What about one that floats in mid air? That's ...