Keyword: Siren
- Dvořák L.: Physics with The Laughing Cow – or experiments with very simple equipment, Fair 10, Praha 2005A collection of simple experiments from the field of mechanics, oscillatory motion, acoustics and optics conducted with cheese boxes.
- Piskač V.: Three new experiments, Fair 12, Praha 2007The first part of this contribution is a demonstrative experiment –a light bulb rheostat changes a current in a circuit. The second part deals with acoustic devices (Seebeck siren and monochord), demonstrated by electromagnetic detectors.