Retrograde clocks are unique, in that they eschew the normal fully-circular movement for the hands. Instead, the hands merely sweep out a segment of a circular arc, before jumping back to their start ...

Time zones are a complicated but necessary evil. Humans like the numbers on the clock to vaguely match up with what the sun is doing in the sky outside. To that end, different places in the world keep ...

Before LCDs and LEDs became cheap enough to add to nearly any device, mechanical flap displays were used in large-scale signage and bedside alarm clocks for improved legibility. Shinsaku Hiura has ...