ELI5: Explain Like I'm 5

Concentric siphon

Alright kiddo, let's talk about concentric siphons! Imagine you have two cups - one smaller than the other - and you want to move water from the bigger cup to the smaller one.

First, you fill the bigger cup with water and place the smaller cup inside it. Then, you connect the two cups with a tube. This tube is called a "siphon."

Now, here's where things get cool. Even though the small cup is inside the larger one, we can still use the siphon to move water from the bigger cup to the smaller one. How does that work?

Well, it has to do with gravity. When you fill the bigger cup with water and the siphon is connected, water will start to move through the tube and into the smaller cup. This happens because of the force of gravity pulling the water down.

But wait, there's more! The siphon won't just keep moving water until the smaller cup is full. It actually regulates the flow, so that water will continue to move only as long as there is a difference in water levels between the two cups.

This makes concentric siphons really useful in all sorts of situations - like when you need to move water from one container to another without using a pump. Pretty neat, huh?