https://pbs.twimg.com/media/E9lTI7lXIAgYtjO?format=jpg&name=4096x4096
"Last but not least is what Pais calls a high frequency gravitational wave generator. The patent purports that the electromagnetic fields created by the Pais Effect could be intersected, generating waves of gravity upon which a spaceship could propel itself to its destination. Such waves could also be used to deflect asteroids more efficiently or communicate through solid objects."
https://www.forbes.com/sites/arielcohen/2021/02/08/what-is-behind-the-us-navys-ufo-fusion-energy-patent/?sh=5ce5eb984733