I've explained what 'scalar' means in the [Reply #24 on: Today at 10:21:36 AM] right in this thread. There are examples as well.

The discussion here is in regards to 'scalar waves' however. Without a
formal definition of what a scalar wave is supposed to be, preferably by the person who
originally coined the term, it seems there is not too much further to discuss. People seem to be actually mixing
up different concepts when they use the term 'scalar wave' as well. As I mentioned, a longitudinal wave
in a magnetic field or electric field, if such is possible,  would apparently not qualify as a 'scalar wave'.
We can't be sure though without a formal definition of 'scalar wave'.

Just imagine any one of the scalar values from examples I gave, to be acting as wave. For example density. If density starts changing in a periodic way, you get a sound or a longitudinal wave. Because fields are derivatives of the scalar, that means that wave in the scalar will produce waves in its derivative, the fields. But reverse would be true, as well. An oscillation in a derivative, will cause oscillation in a scalar.

Now, sound is a common example. But I wander wold that apply to temperature, which is scalar as well. A temperature of a light bulb oscillates with an AC frequency of 50Hz. Would that cause oscillation of a temperature at some distance from the light bulb? Just an idea for a very simple scalar field experiment.

Yeah, I read Meyl's book, all 400 pages of it. As you say, its math heavy. There is no way around math, it gives you an insight.

Anyway, I was struggling with math as well, when, about two weeks ago, I stumbled on these animated videos. They didn't boggle me down with dozens of instructions, but explained all the vector algebra with nice, intuitive animations. I instantly understood the working principles and worked from there. Here they are:

Grad - Grad, Div and Curl (1/3)

What Is a Field? - Instant Egghead #42

Gradient of a Scalar Field - Dragonfly Education

What is a vector field?? Chris Tisdell UNSW

Gradient of a scalar field

And the unmissable classics:

AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)

Tektronix - Transmission Lines

Meyl is buddies with Dr Keshe, neither is to be trusted, Meyl points to voltage on the receiver as a indication of OU and I have not
seen any actual transmitter input and receiver output power/energy figures.

I myself with my pair of 12 volt Tesla transformers transmitted electricity via a single wire laying on the ground from inside one
metal clad shed to inside another metal clad shed not faraday cages but not far from it.

I got an output voltage of 24 volts with a small load (more than Meyl's 3 mm LED's) with only 12 volts input. Voltage magnification
is not OU. My setup could have been greatly improved with a few modifications and got much better efficiency but it would still
have been under unity and no need for "scalar waves" as the connecting wire is how the energy is transmitted. The receiver coil
could have been in a faraday cage and it would still work because the wire goes from transmitter to receiver. In Tesla's World
system the Earth would be the conductor replacing the wire in mine and Meyls experiments and the earth itself would be included
in the resonating circuit as with my experiment the setup was tuned to include the wire but rather than having two current nodes one at each transformer ground plate as in Tesla's arrangement mine and Meyl's setups has one current node somewhere on the
connecting wire. For a grounded system to work it would need to operate at some harmonic of the Earths resonant frequency
and enough energy would need to be input to cause a resonant rise on the receiver when tuned.

One of my experiments.
https://www.youtube.com/watch?v=F1nfWnjufZo

Meyls experiments and claims are unimpressive to me.

Can I claim to have produced scalar waves because I can shield the receiver terminal and still receive energy from the transmitter ?
No of course not.

It's not a radio the, terminal is not a radio antenna it's an elevated capacitance, shielding it by line of sight from the transmitter terminal is a ruse.

Meyl has confused himself with the numbers so much he cannot see what is actually happening right in front of him. Or he is a scammer like Keshe. His kits are way overpriced.
..

And before anyone harps on me about the quality of my demonstration I would remind them that I am not trying to sell anything.
It was a simple quick demonstration to show I can do what Meyl can do. If his demo is watched closely I can see he demo is flawed. And he gives no power in out or energy in to out to be able to claim anything much at all.

..

I wouldn't go that far to discount Dr. Meyl's results.

He has a Doctor degree, so he won't be talking BS easily. In addition to that he is a professor at a very reputable university in Germany. He devoted his professional life to EE. He would be well aware of all the pros and cons, as well as engineering details.  Not to mention that he has access to high quality instrumentation. I've seen a picture of the lab at his uni and they are loaded with Swiss made LeCroy oscilloscopes. LeCroy is just about one of the premium brands in scope market. He states that his students had repeated his experiments, even at distances far in excess of one wavelength.

Him using a voltage as indicator, might be just a logistic constraint, because he traveled from Germany to US to give that lecture and most likely didn't have a room in his luggage to carry oscilloscope.

But yes, measuring the input & output power is the biggest problem we face as experimenters. I thought of using DC motors attached to weights to measure the power output. But I need some advice here, because impedance mismatching can ruin the scheme.

Regarding the Faraday's cages, they leak easily. Metal shed is not good enough, despite valiant effort. A tiniest of gaps, in the Faraday's cage, is good enough to ruin the experiment. Here is a good experiment, about influence of gaps on Faraday's cages:

EMP Trash Can Faraday Cage Testing in Lab

@Void: ... If you have a specific circuit setup and schematics that you are testing with, I could offer some suggestions on how to measure input and output power. ...

Thanks.

I am only learning theory now, so I can minimize a number of uninformed assumptions I make. Plus, I do like learning physics.

Not much time for experiments, right now, unfortunately.

Dr. Meyl's extension of Maxwell's theory and maths is way above my head.

But what is interesting here, is that he meticulously read Tesla's lab notes and repeated Tesla's results.

Tesla claimed that when two of his magnifying coils were in resonance, at certain frequencies, the receiving coil started collecting energy from environment. Now that part is what I would like to verify. There is no OU, but some kind of environmental energy was harvested.

It seems that Dr. Meyl did some good work there.  Tesla claimed that he was collecting more during the day than during the night. So Dr. Meyl concluded that Tesla was collecting neutrinos coming out of the Sun.

DROBNJAK's comments about Faraday cages are right on the money, and the problems get worse with higher frequencies. For really complete isolation you need a double-layer, completely sealed enclosure, with the two walls electrically isolated, and in some cases you even need to actively bias the "capacitor" formed by the walls, grounding one or the other of them to a really solid Earth ground (like a buried heavy conductor that surrounds the footprint of the cage) and put some voltage on the non-grounded wall. Any electrical feedthroughs into/out of the cage can leak, transfer RF, etc. Good ones are even lined inside with anechoic, conductive foam walls (like the kind used to package static-sensitive CMOS, etc). It's not a trivial exercise to set up a good HF Faraday cage.