Pneumatic bladder

Okay kiddo, so you know how we have these little rubber balloons that we can blow up with air? Well, imagine a bigger version of that, called a pneumatic bladder.

Instead of just being for fun, a pneumatic bladder is used to hold air under pressure for specific uses in machines and devices. It looks like a big rubber bag or balloon, but it's made of a very strong material that can handle a lot of pressure without popping.

When we fill up the bladder with air, it gets bigger and expands. And when we release the air, it gets smaller again. This changing size and pressure can be really useful for making machines work.

For example, a pneumatic bladder might be used in a hydraulic system to push fluids around in pipes, or in a car suspension system to cushion the car from bumps on the road. Even some exercise equipment like resistance bands use pneumatic bladders to allow you to work out.

So, think of a pneumatic bladder like a big, strong balloon that helps machines do their jobs better. Pretty cool, right?