Thanks to Andrew for pointing me to this wonderful electrical rendition of the Doctor Who theme.
The device used here is sometimes known as a "Zeusaphone", because of the, uh, lightning bolts!
According to Wikipedia:
"Zeusaphone, also called a Thoremin, is trademark for a high-frequency, solid state Tesla coil, when its spark discharge is digitally modulated so as to produce musical tones. The high-frequency signal acts in effect as a carrier wave; its frequency is significantly above human-audible sound frequencies, so that digital modulation is able to reproduce a recognizable pitch. The musical tone results directly from the passage of the spark through the air.
This is a variant of the plasma arc loudspeaker, designed for public spectacle and sheer volume rather than fidelity."
If you fancy the musical sparks, you can buy one, here.
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1 comment:
Jeepers creepers! Certainly worthy of The Great Doctor!
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