I've tried numerous apps to help me stay focused, but I tend to fall back to my built-in clock app—so I've decided to fully ...

The clock uses only digital logic ICs to tell the time – there are no microcontrollers here! After four or five iterations over almost a whole year, [Ian] was finally able to coax the circuit ...

The clock uses white LEDs to edge-illuminate a polycarbonate plate. This light passes through two polarizers—one fixed, one rotating—creating constantly shifting colours. Sounds fancy ...