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The 13 pages that link to Water clock, each with the reason it gives.

• AutomationBroader topic: Ancient water clocks show how devices could regulate recurring operations without continuous attention.

• QanatRelated: Water clocks were used in some communities to time shares of qanat water.

• Mechanical clockCompared with: It represents a major pre-mechanical approach that clockmakers sought to surpass.

• SundialCompared with: Unlike a sundial, it can operate without direct sunlight.

• HourRelated: Water clocks allowed hours to be tracked when sunlight was unavailable.

• ClockRelated: Water clocks tracked intervals independently of sunlight before mechanical clocks spread.

• Zhang HengRelated: Water power could drive the motion of astronomical instruments in his era.

• Su SongRelated: Water powered the clock tower’s mechanisms and drove its timekeeping cycle.

• History of timekeeping devicesBroader topic: Water clocks extended time measurement beyond daylight and clear skies.

• Jang Yeong-silNarrower topic: The Jagyeokru applied water-clock principles to produce automated time signals.

• ChronometryBroader topic: Water clocks enabled time measurement when sunlight was unavailable.

• Ismail al-JazariRelated: Several al-Jazari designs use water flow and moving indicators to display time.

• Yi XingRelated: Accurate timing supported the repeated astronomical observations behind calendar calculations.