reactionless

While you're dropping into ANU, find out if anyone is working on a "reactionless" electro-magnetic drive based on momentum stored in static crossed EM fields.

Space : The Long Haul Zoe Brain 2006

This probably explains their more nonsensical statements about Tea Parties: the idea of a legitimate populist, grassroots-driven movement is as alien to them as a reactionless drive would be to a modern physicist.

DNC *still* advertising for astroturfers. | RedState 2010

Somewhere in the cylindrical metal pod near her center of mass, perhaps occupying it completely, was the reactionless drive.

Crashlander Niven, Larry 1994

Its drive must be either a reactionless drive, like his own, or a kzin-style induced-gravity drive.

A Hole In Space Niven, Larry, 1938- 1992

Hot Needle of Inquiry must be moving on reactionless thrusters alone.

The Ringworld Engineers Niven, Larry 1980

* Hot Needle of Inquiry* must be moving on reactionless thrusters alone.

The Ringworld Engineers Niven, Larry 1980

Most ships used a reactionless drive, the "thruster."

Tales of Known Space Niven, Larry 1975

Its drive must be either a reactionless drive, like his own, or a kzin-style induced-gravity drive.

Tales of Known Space Niven, Larry 1975

The engines must be reactionless: thrusters of the human type, or something more advanced.

Ringworld Niven, Larry, 1938- 1970

You will find that the ship behaves very like a ship driven by reactionless thrusters, except that there is no internal gravity.

Ringworld Niven, Larry, 1938- 1970