# Re: [TCML] question

It was always myth and hearsay of course. I have some charts showing reasonant frequency / wavelength as a function of the dimensions but not handy.
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Matt Siri wrote:

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```I wondered about this not too long ago myself.  Thus I took to experimenting.  I strung a piece of wire across the house (much to my dear mother's disliking) and hooked to it a signal generator and hfac voltmeter.  I swept the wire as if it were a resonator and found that it responded nicely to a frequency corresponding to its 1/4 wave frequency (assuming c as the propagation speed).  I then wound the wire onto a few different forms and found that no longer did the coil respond well to the 1/4 wave frequency.  I concluded from this that when the coil inductance and capacitance are significant, frequencies corresponding to these predominate over the 1/4 wave frequency.  In fact, later I thought about how these waves reflect and I consulted someone with more wisdom in the subject than my 18yo mind and learned that the coil will always resonate at the (2n-1)/4 frequency, but the wave speed will change with a change in inductance or capacitance.  This
then brings up an interesting proposition: if a resonator is constructed so that it LC frequency corresponds to a (2n-1)/4 frequency that corresponds to a wave speed faster than c, will the wave actually travel faster than c?  The answer is yes and no: it will appear to from one standpoint but not at all from another.  Hope I helped.

Mattison Siri

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From: greg westfall <aztec@xxxxxxxx>
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To: tesla@xxxxxxxxxx Sent: Monday, June 4, 2012 12:41 PM
```Subject: [TCML] question

I found on one site that the length of wire on the secondary, that has always been 1/4 wavelength, is no longer valid,
that it has been proved wrong. Can anyone enlighten me on this subject? Hopefully with cites so I can study up on it for myself.
Greg
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