Why did Battleships have these Bulges on the Side?

Battleships had bulges on the side to stay strong when big waves or attacks hit them.

Imagine you're playing with a toy boat in a bathtub. If the water gets too rough, your boat might tip over or even sink! Now think of a battleship as a much bigger, tougher toy boat, but instead of just water, it has to deal with waves, bullets, and sometimes even explosions.

The bulges are like the padding inside your backpack. When you carry a lot of books, your back gets sore, but the padding helps take some of that pressure. Similarly, the bulges on a battleship help spread out the force from an attack or wave. That way, the ship doesn’t get damaged as much.

If there were no bulges, it would be like having a hardback book in your backpack instead of soft padding, your back (or the ship) would feel every bump and hit more strongly!

So the bulges are like a super strong, flexible shield, helping battleships stay safe and steady even in tough times.