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Musician Thomas Bloch playing the waterphone, 19 September 2009 at the Mittersheim pond, France. A waterphone (also ocean harp) is a type of inharmonic acoustic tuned idiophone consisting of a stainless steel resonator bowl or pan with a cylindrical neck and bronze rods of different lengths and diameters around the rim of the bowl.
The water must be "blown" into the hydraulophone by way of a pump which can be hand-operated, wind-operated, water-powered, or electric. Unlike woodwind instruments in which there is one mouthpiece at the entrance to the flute chamber, hydraulophones have mouthpieces at every exit port from the chamber.
A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation. [1] It is used to precisely measure the level of a free water surface as an evaporation pan or a tank. The main users are meteorologists and water engineers, especially in hot, arid countries where water conservation is of vital ...
Handpan is a term for a group of musical instruments that are classified as a subset of the steelpan. Several handpan makers and brands have emerged in recent years, resulting from a growing worldwide interest in the Hang , which is an instrument developed by the company PANArt that is based on the physical properties of the Trinidadian ...
Also Abrams' water-cement ratio law. A law which states that the strength of a concrete mix is inversely related to the mass ratio of water to cement. As the water content increases, the strength of the concrete decreases. abrasion The process of scuffing, scratching, wearing down, marring, or rubbing away a substance or substrate. It can be intentionally imposed in a controlled process using ...
The siku is an Andean pan flute This pan flute from the Solomon Islands is made from bamboo bound with reeds and rope. A pan flute (also known as panpipes or syrinx) is a musical instrument based on the principle of the closed tube, consisting of multiple pipes of gradually increasing length (and occasionally girth). [1]
The Hang (German pronunciation:; [1] plural form: Hanghang) [2] is a type of musical instrument called a handpan, fitting into the idiophone class and based on the Trinidad & Tobago steelpan instrument.
A water level device showing both ends at the same height. A water level (Greek: Aλφαδολάστιχο or (υδροστάθμη) [Alfadolasticho]) is a siphon utilizing two or more parts of the liquid water surface to establish a local horizontal line or plane of reference.