Tesla's "COIL FOR ELECTRO-MAGNETS".

[MileHigh]

Farmhand:

For the resonant frequency, ringing a bell loud or soft gives you the same frequency.  Granted, in a coil trying to deal with the inter "field" (first and second halves of the coil) capacitance is more complex.  So I was being too rigid.  It's possible that the inter-field capacitance is a function of voltage also, which would then affect the frequency.  It could even be a function of time on top of that.  This is the kind of thing that you model on a supercomputer which I have mentioned before.  Are you aware that they used a supercomputer to model the shape of the Pringles chip?  Without a supercomputer, just play with a Slinky and take notes.      That's because our friend the spring is also a model for an inductor.  What are the variables I wonder.

An ideal inductor should not make any difference in the resonant frequency, but you risk creating a singularity and destroying the universe.  lol  Here is the thought experiment:  You pulse an SBC coil with a synchronous pulse.  So the amplitude of the self resonance keeps on increasing and increasing, there is no resistance to burn off the supplied power anynnore.  Eventually the inter-field voltage gets so high that the air breaks down.  If the air didn't break down, then you can assume that a very small fraction of the oscillation energy would get transmitted as RF at the resonant frequency.  That's a safe conservative assumption.  So the amplitude would have to increase to the point that all of the energy supplied by your little synchronous pulser was broadcast as RF.  So the whole system would stabilize at a very high AC voltage where the pulse energy in = the RF energy out.

MileHigh

[MileHigh]

As with the voltage, with magnet wire I don't think much difference would be seen because of the small spacing between turns.

Just a note about the capacitance.  If you look at the formula for the capacitance between two parallel metal plates, the distance between plates is critical.  For the coils you have to visualize the distance as being huge.  The "huge" distance between wires means there is almost no capacitance.  Assume that the insulation on the wire only increases the permittivity a bit.  So although your total "plate area" is decent, your distance and dielectric material suck, and your capacitance is minuscule.

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/pplate.html

The numbers will typically be in the picofarads as we know.  Take 500 picofarads, as an example, it's nothing.  You put a 500 picofarad ceramic cap charged to 15 volts onto your tongue and I doubt that you would feel the near-instant discharge.  You might feel the faintest minuscule nip on your tongue.  If you guys have never done that you are missing out.  Play it safe and start out with 9 volts on larger caps and feel the exponential discharge on your tongue.  Work your way down in size and note how the time constant gets shorter and shorter.  When you know the cap is super tiny, then charge to 15 volts to give your tongue a stronger "signal."  That's real bench work, a reality check for your own understanding.

Now, assume the your coil has 500 picocarads of self-capacitance.  The next test you don't do, a pure thought experiment:  Take your coil and run one amp through it - put that across your tongue for a discharge test.  You never know, it might leave two big burn marks on your tongue.  For sure it would scare the s*it out of you and hurt like hell.

So with so much potential energy storage in the inductance and and minuscule capacitance to receive the energy dump from the inductance, that implies that the sell-resonant peak voltage has to go sky high and will indeed cause dielectric breakdown.  Or will it?

How can you excite your own bench coil to such high voltage amplitudes?  You have to synchronize your pulsing precisely, and also decide what phase to do the pulsing.  That would be a challenge because the resonance is way too high in frequency.  But, nothing is stopping anybody from the "real" experiment, and get a decent-sized capacitor and set up an LC resonator that runs at a reasonable frequency.  Then you could experiment with a synchronous phase-controlled pulse and see what you can get.  Chances are the wire resistance will limit your maximum voltage pretty quickly.  However, then you could add buss bars instead of wires and push the voltage even higher.  Make your cap explode because it gets fried by the sine wave peaks.

Are you creaming your jeans now Magluvin?  lol

MileHigh

[MileHigh]

Jbignes5:

We have to agree to disagree on the theory.  But I will respond to some of your points and I think I will even mine that university link I posted.

For starters nobody's forgetting the electric and concentrating on the magnetic in the real world.

You talk about toroidal coils with a core.  Think about this:  the volume of the core can store a certain amount of energy.  When I apply voltage across the two terminals of the coil, I have to do *work* to energize the core.  The instant I stop energizing the core, the core is ready to fire that work back at me, or send it out somewhere else through a secondary winding.  It's just an exercise in pure electrical brute force.  It's much less glamorous than "Plus adding in the focusing of the lines and constricting them into the center...," but it's much closer to the truth.  The toroidal core, and the coil, is just a "football" that is used to move energy from point A to point B.

The transients that Tesla and other experimented with were of the other half you refuse to see or shunt to ground.

EE 411: Circuit Theory

Capacitance and inductance; first- and second-order transient circuit response, including operational amplifier circuits; sinusoidal steady state analysis; Bode plots; three-phase circuits; transformers; two-port networks (Z-parameters and Y-parameters); and computer-aided analysis and design.

Prerequisite: Electrical Engineering 302 or 302H with a grade of at least C-; credit with a grade of at least C- or registration for Mathematics 427K; and credit with a grade of at least C- or registration for Physics 303L and 103N.

EE 362Q: Power Quality and Harmonics

Introduction to and analysis of power quality and harmonic phenomena in electric power systems. Includes characteristics and definitions, voltage sags, electrical transients, harmonics, mitigation techniques, and standards of power quality and harmonics. Electrical Engineering 362Q and 379K (Topic: Power Quality and Harmonics) may not both be counted.

Prerequisite: Electrical Engineering 368L or 369 with a grade of at least C-.

Light is an electro-magnetic phenomenon, not just magnetic.  I always think of shaking the end of a long floor carpet and making a wave travel down the length of the carpet.  There are two complimentary wave phenomena happening there, just like electric/magnetic.  That's the way Mother Nature works!

Putting the conflict aside, Eric has to demonstrate value if he is supposed to have already surpassed Tesla in some areas.  Will there ever be anything coming forth?  I am not optimistic.   I fear that Eric is closer in profile to many recent high-profile fails than most people think.

I don't buy into the Electric Universe but I like astronomy like many around here.  There must be hundreds of other great YouTube astronomy channels.  I recommend going that route!  lol

MileHigh

[MileHigh]

P.S.:  This one is for the street cred crowd.  You know what they say, "When you're a Jet you're a Jet all the way, from your first cigarette to your last dying day!"

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Digital and analog parametric testing of mixed-signal circuits and systems, including frequency response, harmonic and intermodulation, and noise behavior; use of system-level test equipment, including network analyzers, spectrum analyzers, and probe stations; coherent v. noncoherent measurements; design for testability. Three lecture hours and three laboratory hours a week for one semester. Prerequisite: Electrical Engineering 438 (or 338) with a grade of at least C; and credit with a grade of at least C or registration for Aerospace Engineering 333T, Biomedical Engineering 333T, Chemical Engineering 333T, Civil Engineering 333T, Electrical Engineering 333T, Mechanical Engineering 333T, or Petroleum and Geosystems Engineering 333T.

EE 438:  Electronic Circuits I 
Electronic devices in analog and digital circuits. Device physics and modeling; two-port networks; analysis and design of power supply circuits and amplifiers; frequency response; Bode plots. Laboratory work covers generation and acquisition of test signals; current, voltage, and impedance measurements; transfer function measurement; and spectrum measurements and analysis.
Prerequisite: Credit with a grade of at least C- or registration for Electrical Engineering 313 or Biomedical Engineering 343.
In addition to the lecture, students must register for a laboratory/discussion section.

EE 345L: Microprocessor Applications and Organization

Microprocessor organization and interfacing; memory interfacing; hardware-software design of microprocessor systems; applications, including communication systems. Two lecture hours and six laboratory hours a week for one semester. Prerequisite: Electrical Engineering 319K, 322C, and 438 with a grade of at least C in each; and credit with a grade of at least C or registration for Aerospace Engineering 333T, Biomedical Engineering 333T, Chemical Engineering 333T, Civil Engineering 333T, Electrical Engineering 333T, Mechanical Engineering 333T, or Petroleum and Geosystems Engineering 333T.

[sparks]

       What happens if you have an electrically resonate circuit inside a non time variant electric field.  Like we all know about the Tacoma Bridge mechanical resonance problem.   The bridge never swayed unless the wind was blowing but obviously as soon as it did a little bit of wind resistance turned into a whole bunch of bridge movement.