# Hydrophone-MHS 93

> Acoustic hydrophone used by Jean-Daniel Colladon to measure the speed of sound in water in 1826

**Wikidata**: [Q52510123](https://www.wikidata.org/wiki/Q52510123)  
**Source**: https://4ort.xyz/entity/hydrophone-mhs-93

## Summary
Hydrophone-MHS 93 is an acoustic hydrophone created in 1826 and used by the physicist Jean-Daniel Colladon to measure the speed of sound in water. It is an instance of an underwater microphone constructed using tinning. The instrument is currently held in the collection of the Musée d'histoire des sciences de la Ville de Genève.

## Key Facts
- **Instance Of:** Hydrophone (underwater microphone).
- **Inception:** 1826.
- **Creator:** Wikidata Entity Q115741 (Jean-Daniel Colladon).
- **Original Use:** Used to measure the speed of sound in water.
- **Material:** Tinning.
- **Current Location:** Musée d'histoire des sciences de la Ville de Genève.
- **Inventory Number:** MHS 93.
- **Collection:** Part of the collection at the Musée d'histoire des sciences de la Ville de Genève.
- **Commons Category:** Hydrophone-MHS 93.

## FAQs
### Q: What is the specific historical significance of Hydrophone-MHS 93?
A: This instrument is significant because it was used by Jean-Daniel Colladon in 1826 for the specific purpose of measuring the speed of sound in water. It serves as a primary artifact from one of the earliest quantitative studies in underwater acoustics.

### Q: Where is Hydrophone-MHS 93 currently located?
A: The device is part of the permanent collection at the Musée d'histoire des sciences de la Ville de Genève (Museum of the History of Science of the City of Geneva), where it is cataloged under inventory number MHS 93.

### Q: What materials were used to construct Hydrophone-MHS 93?
A: According to structured property data, the material used for the device is tinning.

## Why It Matters
Hydrophone-MHS 93 represents a critical artifact in the history of physics and acoustic engineering. As an instrument utilized by Jean-Daniel Colladon in 1826, it marks a foundational moment in the study of underwater acoustics. Before the standardization of modern sonar and underwater communication, early researchers like Colladon relied on devices such as this hydrophone to prove that sound could travel efficiently through water and to quantify that speed.

The object serves as a tangible record of early 19th-century scientific innovation. Its presence in the Musée d'histoire des sciences de la Ville de Genève highlights the city's role in the development of modern physics. Furthermore, the device's classification as an "underwater microphone" illustrates the technological lineage leading to modern naval and scientific hydrophone applications. Its survival allows historians to examine the material application of tinning in early acoustic instrumentation, offering insight into the manufacturing techniques available to scientists of the era.

## Notable For
- Being an early example of acoustic measurement technology used in 1826.
- Its direct association with physicist Jean-Daniel Colladon.
- Its classification as an underwater microphone (hydrophone).
- Being held by a major scientific museum (Musée d'histoire des sciences de la Ville de Genève).
- Utilizing tinning in its construction, a specific material detail recorded in its properties.

## Body
### Physical Characteristics and Classification
Hydrophone-MHS 93 is technically classified as a hydrophone, defined functionally as an underwater microphone. The device is distinct for its construction material, identified specifically as tinning. It remains an extant physical example of early 19th-century acoustic apparatus design.

### Historical Context and Provenance
The instrument dates back to 1826. It is historically attributed to the creator identified in records as Q115741 (Jean-Daniel Colladon). Its primary historical function was to facilitate the measurement of the speed of sound in water.

### Current Preservation and Identification
The artifact is preserved at the Musée d'histoire des sciences de la Ville de Genève. It is officially cataloged within this institution under the inventory number MHS 93. Images of the device are archived under the Commons category "Hydrophone-MHS 93," and it is recognized in academic and knowledge bases primarily through its Wikidata description and single sitelink count.