Two kinds of induction - Henry

[nix85]

i know the way he describes it is extremely confusing and thus practically worthless, but that is how i got it, that needle gets magnetized only if currents don't cancel out

[onepower]

There would seem to be many kinds of Induction.

We are generally concerned with Electro-Magnetic induction however this is born from Magnetic field Induction and Electric field Induction which are distinct phenomena in themselves. Wilhelm Weber also discovered the longitudinal force which can induce other objects but he never determined exactly how. There is also self-induction and mutual induction which basically fall under the umbrella of Electromagnetism.

On the far end of the spectrum we also see strange things whereby external field effects have caused/induced the magnetization of metals such as aluminum for a period of hours. In another case a field of force was induced in the region under a high speed moving plastic film coming off a large roll in a manufacturing plant. The invisible field of force supposedly stopped people in there tracks and had the consistency of jello... is this induction?.

I think all relate to Electro-Magnetism however there would seem to be countless possibilities how induced field forces can manifest themselves.

Regards

[nix85]

In another case a field of force was induced in the region under a high speed moving plastic film coming off a large roll in a manufacturing plant. The invisible field of force supposedly stopped people in there tracks and had the consistency of jello... is this induction?.

only kind of induction i really care about

we hear about these jello like invisible forcefield all over, from us planes exploding into invisible barriers during operation highjump to countless ufo cases, to wiliam hamilton's report on antihill facility, california, no doors but two cylinders in the walls that project such field etc.

[nix85]

bill hamilton's research on Northrup RCS Facility at Tejon, CA

https://youtu.be/A_74SNIgcfQ?t=1559

[kajunbee]

https://commons.princeton.edu/josephhenry/galvanometer/

They seem to match his description in his scientific writings. He states that one had 500 turns and the other one was 40 turns.