Mechanical clocks first appeared in northern Italy in the 13th century, following earlier methods of timekeeping like ...

Restoration work has been completed to an 18th century clock tower after seven weeks. The face, hands and numerals of the clock, which is situated at the entrance of Blenheim Palace's Great Courtyard, ...

To better understand the circadian clock in modern-day cyanobacteria, a research team has studied ancient timekeeping systems. They examined the oscillation of the clock proteins KaiA, KaiB, and KaiC ...