I did some research on anti-gravitational flying objects and I came to a conclusion, the key to ant gravity is mercury believe it or not, based off the theory of relativity if you have a objects spinning or moving at such a speed it will also effect the things around the object, so if you were to have a mercury vortex engine with a big enough tank to hold a massive amount of mercury with a secure seal you would be able to fly without laws of gravity, the mercury spins whenever you have electromagnetic interference and electricity, if you have strong enough electricity and electromagnets the mercury would spin so fast it would eventually hit the top of the seal and continue spinning upside down causing the object to levitate, since mercury is so dense the tank or seal would be influenced by the rapid movement of the spinning mercury, but all this research is pretty fun it turns out a mercury vortex engine was made in the late 1800’s by a Indian man, they were called vimana’s. Here are some things I found while looking. https://patents.google.com/patent/CN102761296A/en. https://airpowerasia.com/2020/08/27/vimana-the-ancient-indian-aerospace-craft-time-for-indigenisation/