Anti-Gravity device. (serious question)

The reference to the WTC's was in response to the question of a float held at the bottom of a body of water is consider stored energy. Considering the energy used to put the float at the bottom and hold it there, then yes it is stored energy waiting to be released. Wether or not more or less energy is observed in the release than in the storing is another argument.
The effects of Gravity have been explained much like the effects of wind have been explained but we now what wind is and what creates it.
I can only guess at what Gravity is and what creates it but for my guess to be correct then we would have be in a macro/micro continuum. Which is to say that, what we (humans) can observe of the electromagnetic spectrum within the confines of our biological and technological abilities is, at the same instant, the smallest part of something way larger than could every imagine and the largest part of something way smaller than we could every imagine. Its kind of like making your right eye look to the extreme right and your left eye look to the extreme left at the same time. Even though the muscles are there to do this, there has been no reason for our eyes to be able to do that, so our brains don't know of a command to send the eye muscles to preform this feat. I would like to express to any children reading this that they not try this experiment without parental supervision! Time comes into play with this as well but I'll save that for another time. Getting back to Gravity though. We know that the farther away we get from our Earth the less effect our Earths Gravity has on us but that our Earth is not creating that Gravity its only the effect that Gravity has on our Earth that effects us humans. There is to our knowledge four states of matter; solid, liquid, gas, and plasmatic. For us to truly comprehend just exactly what Gravity is, I think that we would have to know is, just exactly what we are in the macrocosm. Is what our universe is, within a bit of blood? Or maybe we are part of a deep sea sponge? A molecule of air perhaps? Who knows? We could be anything at anytime. Energy is never "consumed" it merely changes from one state to another. One thing is for sure, we are impure energy. We are a form of solidified energy and this will all change in due course. After all, energy and matter in there purist form is light itself.
Imagine striking a match. For us it lasts for only a few seconds but for the microuniverse of molecules and elements, swirling and changing, intermingling.... somewhere within it all, there may have been sentient beings, unaware of us but for there kind, billions of millennia may have past by.

There was an interesting artical in Discover magazine about what happens to time at the very smallest intervals:

http://discovermagazine.com/2007/jun/in-no-time

I would have titled the article "Zeno's Ghost"... I guess that's why I don't work in publishing.

Also an article about some recent empirical evidence confirming General Theory of Relativity:

http://discovermagazine.com/2007/jul/einstein-was-right

"Nearly three years ago, NASA’s oft-canceled $750 million Gravity Probe B Relativity Mission finally shot into space with one goal—to quantify Einstein’s predictions from Earth’s orbit. Earlier this year, at the meeting of the American Physics Society, principal investigator Francis Everitt delivered the first results: Gravity Probe B has verified Einstein’s theory to within 1 percent."