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 ...

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 ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

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 ...

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 ...