Active
Research and the software we build for the community, including the astral calculation engine.
In 1930 Albert Einstein and Leo Szilard patented a refrigerator driven by heat, not a compressor. The patent has long expired. We drew a solar version on paper. It is not built, and it is not safe to build from this page.
Two soil bacteria, Azotobacter and Azospirillum, turn nitrogen from the air into a form plants can use. What a desk study found, why "extracting" that nitrogen is harder than it sounds, and what we would test first.
We are rebuilding this site from scratch, in English first, with a calendar and a journal of what we are developing.
In 1787 Ernst Chladni made sound visible with sand on a vibrating plate. What physics says about those patterns, what is real, and where claims about sound and water go further than the evidence.