How does the Wonder of the Seas stay afloat?

It's not magic or flying unicorns that keep the Wonder of the Seas plying the open waters. It's all about buoyancy: the power of a liquid to keep things afloat. Colossal vessels stay above water by displacing an amount of water equal to their mass (the wide, U-shaped hull helps with this).



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Thanks to sophisticated stabilization systems, modern cruise ships can ensure stability and avoid tipping over. Some of these systems, known as active stabilization systems, adapt to water and weather conditions. Gyroscopes, thrusters, and counterweights prevent the ship from swaying in the water.

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Over the past 100 years since the RMS Titanic sank in 1912, only 18 cruise ships and some ocean liners have been publicly known to have sunk. And, over the past 50 years, only four cruise ships have sunk while navigating on a cruise.

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In 2020 the International Maritime Organization (IMO) database listed 438 ships worldwide, with 5,767 crew members, abandoned since 2004; not all cases are referred to the IMO, so the actual number is larger, but unknown. In 2020, by August 470 seafarers on 31 vessels had been abandoned.

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At sea, cruise ships survive hurricanes by avoiding them. The seas are rough, the weather is predictably bad, but otherwise not very predictable.

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The sinking of RMS Titanic in April 1912 remains the worst, and the most infamous, cruise ship disaster in history. The sinking of the biggest passenger ship ever built at the time resulted in the death of more than 1,500 of the 2,208 people onboard.

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Although smaller than most modern cruise ships, Titanic was a historic 46,328 gross tonnage for its time. In comparison, modern cruise ships have a gross tonnage around 120,000. This is more than 150% heavier than Titanic.

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