Sharuk

Four independent research threads - funded by the Department of Defense, validated by NASA, published in peer-reviewed journals - all pointed the same direction: electromagnetism and gravity can be coupled more strongly than physics allows. Ning Li found the mechanism. Podkletnov measured it by accident. Tajmar tried for years to disprove his own results and couldn't. A 2021 NASA memorandum quietly confirmed it again.
The author built a working, open-source gravitomagnetic simulator from this research.