[BC] Is That a Radio Station In Your Pocket, Or...

[Harold Hallikainen]

>
> It was nothing short of genius.  Nothing active in it whatsoever, and
> it worked like a charm for a very long time.
>
> http://en.wikipedia.org/wiki/Thing_(listening_device)
>

Interesting article. It seems like it would create phase modulation
(integral of frequency modulation) and incidental AM. The article says it
radiated at a harmonic of its illumination frequency. How can a harmonic
be created unless there is a nonlinear device?

Harold

--