Inertia drive

The Inertia Drive is the primary accelerator of propulsion featured in Arthur C. Clarke’s novel 3001: The Final Odyssey.

3001: The Final Odyssey
Inertia drive is a tremendous improvement over earlier technology, and works by accelerating every molecule of a ship at the same rate, which has the effect of accelerating the ship without any force being felt by those inside.

Resources

 * Compare to the experimental theory of.