Have you ever played with a water balloon? You know how the water squirts out of the balloon when you squeeze it? A pump and a turbine work in a similar way - they move water from one place to another.
Imagine that you have a big container of water. You want to move that water to another container far away. This is where the pump comes in. It sucks water from the first container and then pushes it towards the second container.
But how does the pump know how much water to push? This is where Euler's equation comes in.
Euler was a very smart man who lived a long time ago. He figured out that the amount of water a pump can push depends on a lot of things. For example, the size of the pump, how fast it spins, and how deep the water is in the first container.
He made a special equation to help people figure out how much water their pump can move. This equation is called the Euler's pump equation.
On the other hand, turbines work backwards compared to pumps. Turbines take water flowing in a pipe and change that flow to generate energy. For example, in a hydroelectric dam, water goes through a turbine which turns a big wheel. The wheel then spins a generator, that makes electricity.
Euler also made an equation for turbines called the Euler's turbine equation. This equation helps engineers figure out how much energy a turbine can generate based on the size of the blades and how fast the water is flowing.
Overall, Euler's equations are like special tools that engineers use to build better pumps and turbines, so that we can all have water and electricity when we need it.