Topic: Lakhovsky coils
After reading up in the Integratron, I learned more about the healing device called "Multiple Wave Oscillator" by Lakhovsky. It was a set of concentric circular antennas connected to a Tesla coil (high voltage generator). The various circular antenna segments would send out specific wavelengths of energy. Here is a modern implementation:

An antenna segment itself supposedly had special effects, even without being connected to a generator:
In December, 1924, he inoculated 10 germanium plants with a plant cancer that produced tumors. After 30 days, tumors had developed in all of the plants. He took one of the 10 infected plants and simply fashioned a heavy copper wire in a one loop, open-ended coil about 30 cm (12") in diameter around the center of the plant. and held it in place with an ebonite stake . The copper coil acted as an antennae or a tuning coil, collecting and concentrating oscillation energy from extremely high frequency cosmic rays. The diameter of the cooper loop determined which range of frequencies would be captured. He found that the 30 cm loop captured frequencies that fell within the resonant frequency range of the plant's cells. This captured energy reinforced the resonant oscillations naturally produced by the nucleus of the germanium's cells. This allowed the plant to overwhelm the oscillations of the cancer cells and destroy the cancer. The tumors fell off in less than 3 weeks and by 2 months, the plant was thriving. All of the other cancer-inoculated plants-without the antennae coil- died within 30 days.
... that's because a loop of wire is an inductor (like an electromagnet) while the gap in the loop is a capacitor. This makes for a very simple LC circuit, an electrical circuit that resonates at a certain frequency: 1/(2 Pi Sqrt (L*C))
So people started making their own "Lakhovsky Coils" to treat various health ailments, like arthritis pain:
http://www.copperhealth.com/coil_printable_version.htm (instructions)
Only thing needed is a loop of wire interrupted by some kind of capacitor. A capacitor is two pieces of metal (whether two wires, two plates, two spheres) separated by an insulator, and it stores electric energy. So two metal spheres on both sides of an air gap make a capacitor. If that's connected to an inductor - the circular coil itself made of one loop of wire, then the whole thing has a specific resonant frequency.
I realized this LC circuit appeared in ancient times as Celtic neck torcs:


They might have assisted ancient Celt warriors in hyper-dimensional combat maneuvers, or maybe helped raise their etheric energy levels, or maybe synchronized the frequency of multiple individuals... not sure...
But as an experiment I made my own:

... used heavy gauge solid copper grounding wire and two small brass drawer knobs. I calculated the LC frequency for various types of neck torcs, and generally they fall into the range of 300-1000 Mhz. The electromagnetic wavelength at that frequency or its 1/2 harmonic is right around the size of the human skull. FYI