Questions about Water clock

Short answers, pulled from the story.

When was the earliest water clock artifact from Egypt created?

The stone vessel from the New Kingdom of Egypt dates between 1417 and 1379 BC. This outflow water clock was discovered within the Precinct of Amun-Re at Karnak during the reign of Pharaoh Amenhotep III.

Who invented the first simple water clock mechanism in ancient China?

Huan Tan documented how temperature and humidity affected accuracy while serving as Secretary at the Court during the Han dynasty. Zhang Sixun substituted mercury for water to prevent freezing in 976 AD, and Zhang Heng added a compensating tank between reservoirs in 117 AD.

What is the meaning of the Greek word clepsydra used for water clocks?

The Greek word clepsydra translates directly to mean water thief because these devices stole time from flowing liquid. Ctesibius introduced an indicator system typical for later clocks including dials and pointers before he died in 222 BC.

How did Al-Jazari design his elephant clock published in 1206?

Al-Jazari published his treatise describing the elephant clock in 1206 which recorded temporal hours requiring daily flow rate adjustments. The device stood over five meters tall and displayed zodiac signs along with solar and lunar orbits using float systems maintaining constant pressure.

When was the Zibad water clock finally replaced by modern technology?

The Zibad water clock remained in use until 1965 when it was finally replaced by modern technology. Persian qanat shareholders relied on these tools to determine how much water they could divert to farms or gardens through managers known as mir äb.

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