I've been reading about this as I saw a short article about it on Drudge. There is a lot of work to be done before any practical use but if it works, it will be a unique moment in history.
It appears to be a propulsion system that does not eject any mass....it just has an electrically driven microwave source and the microwaves resonate in a somewhat conical chamber....producing....thrust!??
http://www.nasaspaceflight.com/2015/...stic-em-drive/
Bookmarks