If you worked with computers back in the 1970s, there’s a good chance you used a light pen at some point: a simple input device that you’d point at the CRT screen to highlight text, choose menu ...

Sometimes the simplest of projects end up revealing the most interesting of things, as for example is the case with [Ryo Mukai]’s light pen for the Vectrex console. It’s an extremely simple device ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. What if you had a fancy new metal material that could be used to make a laptop exceptionally light ...