RE: Longitudinal Waves - Request for clarification

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jan Florian Wagner by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jwagner-at-cc.hut.fi>


>> a) How are the E & B fields of longitudinal waves supposed to vary in
>> space and time?
> 
> Longitudinal pulses do not have E and B fields.  Longitudinal waves vary in
> space and time by length (or time) and density. 

Now how are you supposed to go on and measure this then, with the antenna
setup you proposed to build? Antennas are only able to pick up E/H fields.

You also mentioned rotation - the rotation of EM waves is its
polarization (say, elliptical). It isn't related to the energy "content"
of the wave.
(hmm, any ideas what the polarization of a tesla coil transmitted field
might be...? i'd guess vertical?)

Compression waves propagating in a medium can be detected by other means -
maybe a microphone, for low frequency ("long") waves. So a simple(?) way 
of detecting "longitudinal" waves (EM) might be to transform that EM wave
into a compression wave, and detect this by conventional means. How this
might be accomplished - I've no idea.

Anyway, interesting reading might be

 http://www.cheniere-dot-org/books/ferdelance/index.html
 http://www.cheniere-dot-org/books/ferdelance/s38.htm

which touches Tesla too. ("free energy". stuff.. *sigh*)
So it is not necessarily true, but interesting at least.

As well as the detector
 http://www.cheniere-dot-org/books/ferdelance/s33.htm

> Light travels about 186000 miles in one second so in
> three seconds light will have traveled either 3 seconds or 3 times 186000
> miles.

Yes? Assume a satellite travels 15km/s, so, lo and behold!, after three
seconds it will have travelled three seconds. Right? (sorry, couldn't
resist... ;o)

> The density of light has been experimentally observed and reported
> as "wave packets" in regards to photons.

What density do you mean... Power density?

Light (photons) and EM fields are one and the same. For example, a
diode laser and a tesla coil both produce more or less powerful EM fields.

cheers,

 - Jan

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