Analog clocks are beautiful things inside, using ornate gear trains to keep track of time in a dance of mechanical beauty. However, all too often, the complexity is hidden inside. This gear clock ...

This 3D printed Earth clock built by [Simon Rob] promises to do just that. The build consists of an Arduino Nano driving a stepper motor, which turns a 3D printed model of the Earth through 360 ...

The Manifold Clock Kickstarter project embraces the mathematical concept of Riemann surfaces to create an artsy 3D timepiece that expresses time through shape and movement.