(Moved from comments in Kapanadze device topic, referencing Density Bands.)
I've read this part, but I don't think the "Density Bands" is the density present by Ra and the other ufo guys.
Actually, the density information was derived directly from the Ra Material and the comments of Don Elkins (I spent a couple of years working with L/L Research).
First, let me comment on channeled material, in general. The information related by a channel is only as accurate as the knowledge base that the channel has, as their mind is used to interpret the incoming concepts and put words to it. It is not a conscious act, however. Jim McCarty lf L/L explained to me what goes on when a channeling starts, describing it as hearing a voice in your head that you verbalize, but it can only speak the words you know. It does not appear to be a direct connection to the speech center, but rather to the precursors of speech. One of the things that makes the Ra Material intriguing is that Carla, the channel, is a very well-read person and has a wide vocabulary for an incoming entity to select from. But there are limits... there were occasions when I asked Q'uo a question, and they woudl reply that they'd love to answer the question, but the instrument (Carla) did not have the necessary vocabulary or concepts to permit the transliteration to English. So the things to be learned from this, is that two channels may use the word "density" or "dimension," but may not be talking about the same concept. So "context" becomes very important in channeled material.