Ktesibios

Ktesibios was an ancient Greek engineer and mathematician credited with developing some of the earliest known water clocks, which used the flow of water to measure time. His innovations included the use of float-based constant-level systems to regulate water flow, ensuring more accurate timekeeping. His work laid important foundations for hydraulic engineering and time measurement technology. Ktesibios's designs influenced later mechanical clocks and demonstrate the ingenuity of ancient engineers in using natural principles to solve practical problems.