Every maker needs a geeky wall clock and the geekiest way to get one is to build your own. With so many modular and open-source options, building your own decorative clock is far from the most ...

Proving that an old design cast in concrete can indeed be changed, [Hans Jørgen Grimstad] has revisited his Nixie clock from 2008, cleaned up the electronics and packaging, and turned it into a kit.