I dunno about the findings from the 60s, but non-moving rotors would not keep a helicopter in the air... so at least some progress.
It's not clear whether this thing can steer (by changing ion balance?), if this prototype can't but the concept might, or if it's forward only. If they can steer (change direction at will) without moving parts, that definitely sounds innovative.
It's not clear whether this thing can steer (by changing ion balance?), if this prototype can't but the concept might, or if it's forward only. If they can steer (change direction at will) without moving parts, that definitely sounds innovative.