null-grav n.

Water landings were, after all, SOP in emergencies before the Nullgrav made space-piloting such a lead-pipe cinch for the yokelry.

Two things impressed me most, one big, one little. The big one was NullGrav, of course. Back in 1970 I had known about the Babson Institute gravitation research but I had not expected anything to come of it—and nothing had; the basic field theory on which NullGrav is based was developed at the University of Edinburgh.

In recognition of his ebbing strength, however, Curran kept his legs wrapped around the cable until they were almost into null-grav.

She hadn’t trained in null-grav, that much was obvious.

Employing her psi to activate her null grav, she floated in a cocoon of air in her sleeping chamber.

Lessons from childhood bobbed up in my mind. In space there's no up nor down. Which was another of those things like antigrav not making you sick to your stomach. It’s fine to say that, but clearly the scientists who thought so didn’t live in my body. In space, with null-grav, with a minimal vehicle between me and the void, everything was upside down. Always.