This video could be a kind of study for those who are engaged in modern physics. how not?
This is indeed a very important knowledge for the physicist or the layman who really want to get into antigravity.
John Iwaszko the name of the uploader of this video. Maybe he also plays inside. which explains how like a teacher. or perhaps he was also a teacher of how antigravity "easy" to make.
This video consists of a series that includes a lot about how antigravity could actually be made. Imagine! if this technological knowledge could be in aircraft. It is simple but complicated. Isn't it?
http://www.youtube.com/watch?v=NNLk5G3hgRg