"...entirely hidden discovery..."

Are you serious or is this some kind of satire?

You put a lot of effort into that but this has nothing to do with Antigravity.

Thats just Spin stabilisation and it not only works with Gyros, but also with every other Object in the Universe. Planets for instance arent perfectly round so they dont produce perfect symmetric gravity. If they wouldnt spin, they would leave their orbit around their Star sooner or later.

The faster the Object rotates, the more stable it will be. Imagine a Egg lying on the floor. If you rotate it, it will stand up. Why? Because the weight will be distributed more even the faster it rotates. That leads to a shift of the center of mass and that creates the upward movement. Im not a scientist and im from Germany. Maybe i mixed up some words or so. But i hope you understand what i want to say. 😉

https://en.wikipedia.org/wiki/Gyroscope

This page explains it more scientific but its only in german. Maybe you can translate it with deepl.com or so:
https://de.wikipedia.org/wiki/Kreiseltheorie#Drallstabilisierung