How is the JAXA tether experiment supposed to work in space? I hear the words, "it will act as a drag and cause early de-orbit". However, the tether is orbiting with the satellite (ATV) - same orbit, same speed (velocity), but with less mass and less drag profile than the Host Transfer Vehicle. So how does the tether "unfurl", how does it "change orbit" and how does it slow down the larger mass, larger drag profile vehicle? Thx.