Watch Wiki

The Best Watches and Watch Brands

User Tools

Site Tools


Water clock

Water clocks are defined as devices to measure time, where water flows in a known volume or flows out of a known volume. The first are called 'inlet clocks', the second 'outlet clocks'. Since ideally the increasing or draining volume remains constant per unit of time, the elapsed time can be determined from the inflow or outflow volume.

Water clocks are rated among the elementary clocks, such as the sundials, but have the advantage that they are independent from the presence of sunshine. A great problem with these watches, however, is their dependance of the temperature, for which reason this should be kept as constant as possible and in any case above 0°C at normal atmospheric pressure. To work around this problem, it is therefore possible to use a medium that has a deeper melting temperature and lower expansion coefficient, for example mercury.

water_clock.txt · Last modified: 03.07.2022 15:39 by

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki

© Watch Wiki. All texts are protected by copyright. The respective copyright holders are the signatories of the contributions. For details see Impressum. Regarding objections and complaints (copyright and other rights) also see there. Impressum | Privacy Policy | Copyright | About Watch Wiki