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Title: Greece: Two ancient Greek outflow water clocks (clepsydra) from the 5th century BCE, Ancient Agora Museum, Athens. Photograph by Marsyas (CC BY-SA 2.5)
Caption: Greece: Two ancient Greek outflow water clocks (clepsydra) from the 5th century BCE, Ancient Agora Museum, Athens.
. A water clock or clepsydra is any timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the amount is then measured.
Credit: Album / Universal Images Group / Pictures From History
Image size: 3333 × 4645 px | 44.3 MB
Print size: 28.2 × 39.3 cm | 1312.2 × 1828.7 in (300 dpi)