If you visit the Copenhagen City Hall, you’ll see an ornate mechanical clock. By itself, this is unremarkable, of course. There are plenty of ornate clocks in city halls around the world, but this one ...

All living creatures are affected by the cycles of celestial objects. Humans have always been locked into the rhythms of sunrise and sunset, the phases of the Moon, and the seasons. We left some of ...

An 18th-century Neoclassical clock standing ten feet tall, made by a clockmaker to the French king, may fetch as much as $850,000 at a Paris auction on June 30. “It’s a once-in-a-lifetime occasion,” ...

Looking for a new project, or just want to admire some serious mechanical intricacy? Check out [illusionmanager]’s Astronomical Clock which not only tells time, but shows the the positions of the ...

Bedini, Silvio A. 1980. [Book review] "Geared to the Stars. The Evolution of Planetariums, Orreries, and Astronomical Clocks, by Henry C. King in collaboration with John R. Millburn." Sky and ...

The leap second – units of time added to the atomic clock every few years to remain synchronised with astronomical time – should be replaced with a leap minute added far less frequently, a leading ...