Two metals buried in the ground create a natural insect shield that costs less than five dollars and runs on the earth itself. This is the science of the earth battery — a 270 year old technique that the $5.5 billion repellent industry made sure you never learned. In this video, we trace its history from Abbe Nollet's 1749 experiments to modern peer-reviewed research proving copper's devastating effect on mosquito larvae.

SOURCES:

Becker, N. et al. (2015) — Metallic copper spray: a new control technique to combat invasive container-inhabiting mosquitoes — Parasitology Vectors
https://pmc.ncbi.nlm.nih.gov/articles...

Reza, M. and Ilmiawati, C....

Floating forages are one of the most misunderstood feed tools on small farms. I spent four months testing five different floating and aquatic forages side-by-side using the same animals, same water, and same containers to find out what actually works — and what’s overhyped.

In this video, I break down the real production numbers, protein content, animal acceptance, and container requirements for azolla, duckweed, spirodela, water spinach, and watercress. One forage tripled my production per square foot, one replaced $340 per month in feed costs, and one my pigs refused to eat entirely.

This is not theory or extension recommendations...