If the workings of a mechanical timepiece give you a thrill, prepare to be blown away by this over-the-top astronomical clock. The horological masterpiece, which was designed by [Mark Frank] as ...

Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

Jens was 60 when he started constructing the clock, but the story starts when he was only 25. In Strasbourg, the young locksmith saw an astronomical clock with a perpetual calendar in a cathedral.

Astronomical clock, made by Samuel Watson, London, about 1695. in ebonised case with one cranked winding key and two door keys. Astronomical clock, made by Samuel Watson, London, about 1695. in ...

This remarkable astronomical clock is one of only two known examples worldwide. Its counterpart, in the Forbidden City at Beijing, differs from it only in minor details. The outer brass rings can ...

Located in the Old Town Square, the Prague Astronomical Clock has been around since the 15th century, though it has required repairs many times over its history. This clock doesn't display the ...

Egypt holds the distinction of being one of the cradles of the water clock, with some of the earliest examples originating ...

For its first 300-or-so years, the clock looked a little more basic than it does today. In 1530, the astronomical clock workings were added further down the structure. Tourists regularly gather at ...

Each observatory is furnished with an astronomical clock, a recording register and a transit instrument. A galvanic current is constantly passing through each clock from a battery outside ...