Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
acoustic device
|
| gptkbp:alsoKnownAs |
siren whistle
|
| gptkbp:demonstrates |
sound frequency
pitch variation |
| https://www.w3.org/2000/01/rdf-schema#label |
Cagniard de la Tour whistle
|
| gptkbp:inventedBy |
gptkb:Charles_Cagniard_de_la_Tour
1819 |
| gptkbp:operates |
forcing air through rotating disk
|
| gptkbp:relatedTo |
siren
|
| gptkbp:usedFor |
producing sound
|
| gptkbp:usedIn |
acoustics experiments
|
| gptkbp:bfsParent |
gptkb:Charles_Cagniard_de_la_Tour
|
| gptkbp:bfsLayer |
5
|