Measurement of time

The exhibition offers a chronological survey of the development of time-measuring methods from the Middle Ages till present time.
The opening part of the exhibition shows so-called rudimentary time-measuring devices: sundials, water-, fire- and sand-clocks.
The main part, however, is devoted to development of mechanical cog-wheel clocks from the 13th century till now. A visitor can see various types and forms of these clocks from tower clocks, via interior clocks of different styles and types to pocket and wrist watches and special time-measuring instruments. Particular attention is paid to technical development of clock machines and the important milestones in this development, such as the invention of pendulum in the 17th century. An attractive part of the exhibition is represented by astronomical clocks.
Another part of the exhibition is devoted to utilizing electrical principles in clockmaking. A gradual development documented here ranges from electro-mechanical systems, via electric synchronous clocks to purely electronic clocks for scientific purposes as well as for general use.
The closing part of the exposition is devoted to examples of clockmaking technology. A part of exhibits (e.g. tower clock) is shown in a running state.


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Radko Kyncl , iso@ntm.anet.cz