Spiral Antennas
A field-practitioner's guide to passive electroculture through resonant geometry. From the physics of spiral antennas and Lakhovsky coils to real-world array layout — how copper geometry shapes the electric field your plants live in.
About This Course
Plants don’t just grow in soil — they grow in a field. The atmospheric electric circuit maintains a standing voltage gradient of 100–300 V/m at ground level, and the question this course answers is: how do you design passive copper geometry to coherently interact with that field?
This is a practitioner’s course. By the end you will understand the physics well enough to make real design decisions, know which materials and geometries actually matter, and have a working installation — no external power, no advanced engineering background required.
Course Structure
Section I — Open Preview (Modules 1–3) The physics underlying why any of this works: the atmospheric electric circuit, voltage and fields in soil, and the antenna principles that make spiral geometry meaningful. Fully open — no sign-in, no account, no email required.
Section II — Design, Build & Documentation (Modules 4–8) Material selection, wire gauge, winding direction, array layout, and how to document your results so they contribute to the field. Continuing past Module 3 requires a free account so we can save your progress — no purchase, no payment info.
What You’ll Leave With
- Clear understanding of why spiral geometry enhances plant electric fields — not just that it does
- Material specifications: wire gauge, conductor choice, coiling direction, grounding method
- A spiral antenna (or full array) installed and running in your growing space
- The design tools to scale from a single plant to a full bed installation
- Access to all interactive simulations: Wire Gauge Calc, Ground Rod Calc, Field Heatmap, Spiral Designer, Lakhovsky Coil Designer, and more
David
I've spent two growing seasons mapping voltage gradients across raised beds, one 4×8 plot at a time — including the layouts that produced nothing measurable. Most of what I teach started as a setup that didn't work the way I expected. I document the null results alongside the wins, because a course that only shows you the wins isn't teaching you how to run the experiment yourself.
I've run 21 of the 47 experiments in the library myself — including the ones that didn't work.
Questions Worth Answering Straight
Will this work in my climate / my soil / my container garden?
The physics — atmospheric charge, ionic conductivity, plant bioelectrics — doesn't care about your hardiness zone. What changes by region and season is the magnitude of the effect, not whether it exists. Every course has you measure your own baseline first, so you're testing your actual conditions instead of assuming a national average applies to your bed.
Do I need electrical experience?
No. If you can use a multimeter, or are willing to learn — each course covers it — you have what you need. Nothing here runs above 24V DC or requires wiring-code knowledge. This is bench-level electronics, not a house panel.
What do I actually have to build, and what does it cost?
Materials vary by course, but most passive and active builds run under $50 in copper wire, connectors, and a basic meter — on top of the course price above. Every build list is itemized in the module content before you buy anything.
How long before I see anything?
Depends what you're measuring. Voltage differentials show up within days of installation. Growth and yield effects take a full cycle — most EGA field data runs 6–8 weeks, which is why every course has you logging data from day one instead of eyeballing it at harvest.
What if I see no effect?
Document it — that's data too. Even negative results teach us something. A null result under specific conditions (your soil type, your season, your geometry) is exactly the kind of finding that sharpens the next grower's setup. This isn't a course that pretends every install works everywhere.
How much time does this take per week?
Pacing is self-directed. Most students spend 1–3 hours a week on lessons, plus whatever field time your build needs — usually under 30 minutes once it's installed.
Is this backed by real research, or just theory?
Every course draws from the ElectricFertilizer research library — documented experiments with controls, measurements, and outcomes, including the ones that didn't hold up. You can read the public claims for any experiment referenced in a course at /research before you enroll.