Universal joint

Have you ever noticed how a car's wheels turn when you steer the steering wheel? That's all thanks to a universal joint! It's like a little helper that connects different parts of the car so they can work together.

Imagine you have two sticks, one bigger than the other, and you want to connect them so they can move together. But the problem is, they can't just be connected straight because they are different sizes. That's where the universal joint comes in!

The universal joint helps to connect the two sticks at an angle so they can move together. They allow for flexibility in different directions, kind of like a ball and socket joint in your body.

In a car, the universal joint connects different parts of the car's drivetrain, like the gearbox and the wheels. It allows for the wheels to move up and down with the suspension while still turning when the driver steers.

So, without the universal joint, cars couldn't turn and move smoothly on the road. It's an important part of making cars work properly!