Why weren't the balls rolling? Why is the table rising?
These questions are answered in the YouTube description of the video:
This is a video taken by a friend, of the Gyroscopic self leveling pool table on the cruise ship "Radiance of the Seas", while travelling back from New Zealand in rough weather in December 2011
As the ship moves the pool table adjusts so that the billiard balls don't move at all, even in rough weather. If you look closely you can see that the balls remain still as the table moves, enabling you to play in almost any conditions..
Crazy.
Thigh Five: Reddit

