Laplace pressure

Laplace pressure is a special kind of pressure that happens when there is a difference in pressure between two liquids that are next to each other. It's named after a smart scientist named Pierre-Simon Laplace who figured out how to measure it.

Now, imagine you have two glasses. One is filled with water and the other is filled with oil. When you pour the oil into the water, the two liquids don't mix because they have different densities. But if you look closely, you'll see that the water level around the oil is slightly higher than the rest of the water. This is because the oil and water are pushing against each other, and the water is pushing harder in the areas next to the oil. This creates a little bit of extra pressure which is called Laplace pressure.

Laplace pressure can also happen in our bodies when we have different fluids next to each other, like our blood vessels and our cells. If there's too much pressure from one side, it can cause problems. But doctors and scientists can use Laplace pressure to help make medicines that will work better and help us be healthier.