PURPOSE: To demonstrate resonance cavities.

DESCRIPTION: Swing Bloogles/Kroogah tubes ("singing" corrugated pipes) over head.

SETUP TIME: less than 5 min.

COMPONENT LIST:

Bloogles/Kroogah tube				Sarah Paukstis' Private Collection

SUGGESTIONS:

REFERENCES: PIRA 3D30.35; AJP 42(4), 278 (theory).

OTHER NOTES: