Dust and Light, and we
must not forget Gravity, (lots
of that), Twist the nothingness
Space in curves. "E = mc2, g = am" Now where was I? Positive, negatives curves, all quite simple it seems. All I've got to do is accelerate this crate to nearly the speed of light and hit a wormhole of negative curvature as the computer winds the spacewarp up to full. That shouldn't be too hard now should it ?!