I am interested in this Hobby. I have seen several experiments and it looks pretty easy to do. I am wondering what exactly lifts this? Is it Ions or ?? They had done a test in a vacume chamber and it was still working, are ions present in a vacume? If it's not ions, then what makes the model rise? And I wonder how high it would rise if it did not need the power line connected? They say it's high voltage, low wattage 30k Anybody taking this seriously? I heard they are using this technology in the leading edges of the B1 Bomber to create more lift. Anybody?