Clepsydra Collection

Ancient water clocks or clepsydrae. Copperplate engraving by Wilson Lowry after a drawing by John Farey from Abraham Rees Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman

Water Clock Clepsydra
The passage of time is registered by the flow of water

Water clocks or clepsydrae, 18th century. Copperplate engraving from Abraham Rees Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London

Tower of the Winds. Athens. Greece
Roman Art. Tower of the Winds (Horologion). Octogonal pentelic marble clocktower on the Roman Agora. I was supposedly built by Andronicus of Cyrrhus Around 50 BC. Athens. Central Greece. Attica

Clock / Clepsydra, C magne
The Clepsydra of Charlemagne (or water stealer ). A graduated vase was filled with liqued which stole through an aperture. The receding height marked the passage in hours

Self-Adjusting Clepsydra
The SELF-ADJUSTING CLEPSYDRA is attributed to Ctesibius, a mechanical engineer of Alexandria, Egypt: the technology involves a dual action of tube and reservoir Date: circa 200 BC

C17 Clepsydra
A sophisticated form of CLEPSYDRA, in which the emptying of liquid causes a drum to rotate, which in turn causing the handles to move round the clock face

Egyptian Clepsydra
The CLEPSYDRA, used throughout the Near/Middle East in ancient times, measures time by how long it takes the upper bowl to fill the lower one

Indian Clepsydra
An ancient clepsydra from Southern India : the bowl has a small hole in it, and gradually fills, at which point the watching boy strikes a gong

Chinese Clepsydra / 14Thc
A Chinese clepsydra or water clock

First Clock
The First Clock - Clepsydra

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