Block (sailing)

Okay, imagine floating in a big body of water on a boat. A block is a special tool that helps sailors control the ropes, which they use to make the boat go in the direction they want it to go. The block is a small wheel-like thing that turns easily and is attached to the boat. The rope goes around the block, which helps sailors pull and adjust it to set the sail and steer the boat. It's like playing with a toy car - the wheels help move the car and the blocks help move the boat. Without blocks, sailors would have a harder time controlling the boat and going in the right direction.