Why Ships Are Painted Red Below the Waterline

When’s the last time you looked at a ship? Picture a cruise ship or container ship in the harbor. Did you happen to notice that the bottom of the hull is always painted red? It’s not like you can see that snazzy paint job under the waterline, so what gives?
In early times, ships were mostly made of wood. That's why sailors had to cover their hulls (the part that’s sitting in the water) with copper paint to protect the vessel from wood-eating worms, barnacles, and seaweed. It was the copper that added a red tint to the paint. But what about now?
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SUMMARY:
- Nowadays, you can add special ship-protecting ingredients to any kind or color of paint. But the hulls are still painted red to honor and maintain the old nautical tradition!
- You also might’ve noticed numbers painted vertically on the side of the hull, usually toward the bow. The red background helps those stand out more.
- It doesn't matter how well you protect the hull of your ship with special paint – it’ll never help you completely avoid the harmful growth of barnacles and whatnot.
- You might not realize it, but almost 95% of all the world's cargo is transported by ship.
- Right at this moment, at least 20 million containers are moving across the world.
- Within one year, the average container ship travels the same distance as going three-quarters of the way to the moon and back.
- The largest cargo ship can carry 18,000 containers with a whopping 745 million bananas inside!
- Maersk has been the biggest container ship operator in the world since 1996. If you stack up just their containers alone, it would equal 7,530 Eiffel Towers.
- One-third of all ship crews in the world don't have any kind of communication with the outside world when they're out at open sea.
- Cruise ships often perform rescue operations. So, don't be surprised if the one you're traveling on stops to save a few fishers in desperate need of help.
- Cruise ship cabins are built separately from the ship because, otherwise, there wouldn't be enough space for their construction.
- Cruise ship cabin walls are made of metal, and the main reason is fire safety.
- During a one-week cruise, a large ship uses 1,800 pounds of coffee, 9,000 pounds of lettuce, 45,000 eggs, and 20,000 ice cream cones!
- Although there are doctors and nurses on cruise ships, if you have a dental emergency, no-one will be able to help you out.
- Cruise ships consume a lot of fuel. For example, a large vessel needs about 121,000 gallons of fuel for every day it spends at sea.
- The largest cruise ships have more than 2,000 crew members. On top of that, such vessels are incredibly expensive to build: they may cost more than $1 billion.
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