A luxury yacht that you can't get seasick on? That's the promise of the Ferretti 630. The Times Online reports on the yacht which uses a stabilizer system called Anti Rolling Gyro (ARG) to stop side-to-side motion. Here's how it works: there is a 154lb steel and aluminum gyroscope in the bottom of the hull with an electric motor, when the sea gets rough and the boat get tilty, the gyroscope spins against the lean and helps keep the boat on an even keel. The stabilizer not only has the benefit of keeping your guests from getting nauseous, it also can help objects stay put rather than pitching and rolling with the boat. The three-cabin yacht has other lovely details like a massage lounge in the owner's cabin and a padded sun lounge on the flybridge. The Ferretti 630 sells for around l £1.57 million and is currently on display at the Southampton boat show.