Okay kiddo, let's talk about the Crowther Criterion. It's a way to measure how well a ship can handle waves in the ocean.
Imagine you're in a bathtub with some toys. You make waves by splashing around. If you have a toy boat, you might notice that it can handle some waves better than others. It might tip over if the waves are too big or too strong.
Now imagine a big ship in the ocean. It's like a giant toy boat, but it's carrying people and things. If the waves are too big or too strong, the ship could tip over or even break apart. That would be very dangerous!
So, the Crowther Criterion helps engineers figure out how big and strong the waves can be before the ship is in danger. They look at things like the ship's size, shape, and materials. They also consider things like the speed of the waves and the direction they're coming from.
By using the Crowther Criterion, engineers can make sure ships are safe and can handle all of the different types of waves they might encounter in the ocean. Cool, huh?