Singing candle
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Singing_Candle_Diagram.svg/220px-Singing_Candle_Diagram.svg.png)
A singing candle is an electro-acoustic installation. The movements of a candle flame are transformed into sound by means of a light dependent resistor (LDR). The sound waves, in return, have an influence on the flame, through an amplifier and loudspeaker, forming a feedback loop.
See also
- Rubens tube
References
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