Kugel fountain

Okay, kiddo, so you know how sometimes water fountains just have water shooting up and then falling back down, right? Well, a kugel fountain is a special kind of fountain where a big shiny sphere sits on top of a pool of water, but it's not just sitting there - it's actually floating!

The way it works is that the sphere, which is made of really heavy metal, rests on top of a special type of water jet that comes up from the bottom of the pool. This jet is very powerful and shoots water up and around the sphere, which makes it spin and move around.

But what's really cool is that the water jet is actually pushing the sphere up a little bit, so it's floating on a cushion of water! And because the sphere is so heavy, it takes a lot of force to move it, so it spins and wobbles in a really interesting way.

It's kind of like if you had a really heavy ball in a bathtub and pushed water up around it with your hands - the ball would start to move and float on top of the water. That's what a kugel fountain is like, but on a much bigger and fancier scale!