Mystery clocks have been popular since the 18th century. The clock seems to have no mechanism but keeps time. One of the most famous is the swinging-arm clock. A tall classical figure, usually bronze, ...

Clocks have been made in forms that depend on the size and shape of the clock's mechanism. The 18th-century tall case, or grandfather, clock was made to hold a long pendulum. In 1816, Eli Terry ...

Would you believe a pendulum clock that can keep time accurately to within one second per year? If you answered “yes”, you’ve either never tried to regulate a pendulum clock yourself, or you already ...

A history of time Clocks are one of the oldest human inventions. Although the origins of the mechanical clock are not known, church records and early references to mechanical clocks indicate that such ...