Not to be confused with Hydraulophone or Sea organ.
This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations.(October 2016) (Learn how and when to remove this message)
Musicians with cornua and a water organ, detail from the Zliten mosaic, 2nd century CE
The water organ or hydraulic organ (Greek: ὕδραυλις) (early types are sometimes called hydraulos, hydraulus or hydraula) is a type of pipe organ blown by air, where the power source pushing the air is derived by water from a natural source (e.g. by a waterfall) or by a manual pump. Consequently, the water organ lacks a bellows, blower, or compressor.
The hydraulic organ is often confused with the hydraulis. The hydraulis is the name of a Greek instrument created by Ctesibius of Alexandria. The hydraulis has a reservoir of air which is inserted into a cistern of water. The air is pushed into the reservoir with hand pumps, and exits the reservoir as pressurized air to blow through the pipes. The reservoir is open on the bottom, allowing water to maintain the pressure on the air as the air supply fluctuates from either the pumps pushing more air in, or the pipes letting air out.[1]
On the water organ, since the 15th century, the water is also used as a source of power to drive a mechanism similar to that of the barrel organ, which has a pinned barrel that contains a specific song to be played. The hydraulis in ancient Greek is often imagined as an automatic organ, but there is no source evidence for it.[2]
^McKinnon, James W. (2016). "Hydraulis."Groves Dictionary of Music and Musicians. Oxford: Oxford University Press – via Online Portal to Oxford Music Online.
^Haspels, Dr. Jan Jaap (1994), Musical Automata. Catalogue of Automatic Musical Instruments in the National Museum "From Musical Clock to Street Organ", Utrecht: National Museum, ISBN 90-801699-2-7
The waterorgan or hydraulic organ (Greek: ὕδραυλις) (early types are sometimes called hydraulos, hydraulus or hydraula) is a type of pipe organ blown...
organ and create somewhat random but harmonic sounds. The Sea Organ has drawn tourists and locals alike. White marble steps leading down to the water...
The pipe organ is a musical instrument that produces sound by driving pressurised air (called wind) through the organ pipes selected from a keyboard. Because...
An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. Each organ has a specialized...
BCE) was said to possess a large water clock with an unspecified alarm signal similar to the sound of a waterorgan; he used it at night, possibly for...
pipe organs in the world, with links to corresponding articles about them. It is generally agreed upon that the world's oldest playable pipe organ is located...
include the gear, screw, rotary mills, bronze casting techniques, water clock, waterorgan, the torsion catapult, the use of steam to operate some experimental...
storage organ is a part of a plant specifically modified for storage of energy (generally in the form of carbohydrates) or water. Storage organs often grow...
reintroducing to Western Christendom the abacus, armillary sphere, and waterorgan, which had been lost to Latin Europe since the fall of the Western Roman...
The organ of Corti, or spiral organ, is the receptor organ for hearing and is located in the mammalian cochlea. This highly varied strip of epithelial...
the air flowing through the organ pipe generated the sound. The instrument is structurally classified between the waterorgan described by Hero of Alexandria...
of his inventions was the hydraulis, a waterorgan that is considered the precursor of the modern pipe organ and the first keyboard instrument. He and...
hydraulophones include a separate water-filled pipe for each note, and have sound-production means similar to pipe organs (but with water rather than air), while...
more symmetrical, and were filled with fountains, statues, grottoes, waterorgans and other features designed to delight their owners and amuse and impress...
famous waterorgan built between 1997 and 1999 by Barthélemy Formentelli based on the characteristics of the previous nineteenth-century organ. The organ is...
description of machines working on air, steam or water pressure, including the hydraulis or waterorgan Automata, a description of machines which enable...
Phorminx Rhoptron Sambuca Salpinx Sistrum Psaltery Tambourine Trigonon Waterorgan (Hydraulis) Roman art, 4th century A.D. Dancer with cymbals. Mildenhall...
as the theremin, the ondes Martenot, synthesizers and keytars), the waterorgan, and the human voice. Wind instruments can effect a similar limited slide...
hydraulics, pneumatics, and mechanics described siphons, a fire engine, a waterorgan, the aeolipile, and a programmable cart. Philo of Byzantium was famous...
literature. In Petronius' Satyricon, one fights to the accompaniment of a water-organ. Seneca remarks on the difficulty of recognising a dismounted essedarius;...
The lymphatic system, or lymphoid system, is an organ system in vertebrates that is part of the immune system, and complementary to the circulatory system...
respiration in air. This organ allows labyrinth fish to take in oxygen directly from the air, instead of taking it from the water in which they reside through...
Vincenzino, Italy Reconstructed Roman tuba Musicians playing a Roman tuba, a waterorgan (hydraulis), and a pair of cornua, detail from the Zliten mosaic, 2nd...
Wright Organ is an American pipe organ located in Christ Cathedral in Garden Grove, California. It is one of the world's largest pipe organs. As of 2019...
The subfornical organ (SFO) is one of the circumventricular organs of the brain. Its name comes from its location on the ventral surface of the fornix...
Global Information
