[SI-LIST] Re: How to explain reflection in circuit?
- From: "Elya B. Joffe" <ebj@xxxxxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 17 Aug 2012 19:55:03 -0400
Dear all,
This shoudl come as no surprise. If you look at the three books of
Richard Feynman, he actually showed that the same equations used for
electrodynamics (Good ol' Max's) apply also to fluid dynamics and to
thermodynamics, once you change the constants...
I think the analogy is great and I have been using it for years, in fact.
Cheers,
Elya
On 17/08/2012 09:59, A. Ingraham wrote:
>> All this wave stuff, and all the concepts you derive from S-parameters (aka,
>> scattering theory) applies to any kind of wave phenomena. A great example is
>> the impedance mismatch at the mouth of a bay and how the tide in the bay
>> leads or lags the tide in the ocean outside the bay.
>> You can get crazy phenomena when the bay and the ocean match impedance,
>> resonance at the tidal period which amplifies the tidal surges. Crazy stuff.
> Fascinating! It had always puzzled me why the tides varied like that,
> instead of just following one's longitude. And it probably explains
> the Bay of Fundy tides too. Cool.
>
> I love it when the principles we learned from electrical engineering
> can be applied to non-electrical things in everyday life. Sometimes I
> wonder whether those things would have been understood if it weren't
> for EE.
>
>> (word to the wise, though: the word "impedance," spoken in polite society
>> can be misunderstood as "impotence" which can be fun when carefully
>> applied).
> Um, what's so fun about applying impotence??
>
> :-)
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