"Wow! Mikala's ship at 600 tons is indeed quite heavy, however the gravity isn't determined by the planet. Instead the ship generates it's own gravitational field and is entirely independent of planetary gravity.."
"Roaring said: "This matter may or may not be invisible, but it should cause visible changes in the surroundings. Take the rising helicopter for example, or even a merely hovering one. It must cause a tremendous downwards acceleration of air so that…"