Will there ever be an anti-gravity device?

O Whale; I'm sorry that idiots answer your question when they don't know anything about it. We obviously have ufo's sighted every day! So the answer must be somewhere, right? Well it is, it has been for many years. Victor Schaubager built craft in the 60's and took off the Austria, his used water in fast spiral rotation to produce what I call a 'particle vacuum' which is really just a way of separating elementary particles. There are many other methods even far more advanced. Einstein himself was witness to the physical disappearance of the USS Elderidge used in the PHiladelphia Experiment. That was meant to absorb radar, but heavy ions/positrons ended up pulse-jump-orbiting from rectifier tubes, and the ship built up a high density field and actually shrunk in space, hiding from the effects of time (which is neutrinos ping through atoms). The ship later re-appeared near France. Anyway, all the tech you want to build any type of ufo I can get you, except for that one which uses element 115 which is something I don't know how to produce or locate. Element 140 is used in stealth aircraft to absorb radar. The exotic metal found in the Roswell crash was a super pure titanium/nickel alloy. I can tell you how to produce that as well, but you don't need it.