Clocks are ancient devices because people have always needed to keep track of time. Around the world, sundials, water timers, candle clocks and hourglasses were the earliest timekeepers. However, once ...

The size and shape of a clock’s mechanism often determined how the case that held it looked. The 18th-century tall-case, or grandfather, clock was made to hold a long pendulum. In 1816, Eli Terry ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Aaron D. Crane (1804-1860) of ...

Atomic clocks. They almost sound like something out of science fiction, or an experiment confined to some elite physics lab, but in reality, they’ve been around since the 1950s in one form or another.

THE most accurate timekeepers of to - day are divided into two classes, depending on whether the restoring force of the oscillator is gravity, as in pendulum clocks, or elasticity, as in quartz ...

Here’s how to build a pendulum-controlled clock which can be made really accurate. Retro? – yes, but an interesting project all the same. You’ll need a spare quartz clock which must be adapted by ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Johannes Van Ceulen made this clock ...