Okay kiddo, let me try to explain to you what NMR in porous media means in a way that helps you understand it better.
Imagine you have a bunch of marbles inside a box that has tiny holes. Now if you shake the box, some of the marbles will go through the holes and fall out, while others will stay inside.
Now, let's say we want to know how many marbles are inside the box and how many are outside. We can use a special kind of machine called NMR, which stands for Nuclear Magnetic Resonance.
This machine uses a strong magnetic field to measure the behavior of atoms in the marbles. The atoms in the marbles behave differently depending on whether they are inside or outside the box.
The machine is also able to distinguish between different kinds of atoms, which helps us figure out what kind of marbles we have inside the box.
So, when we use NMR in porous media, we're basically trying to understand the behavior of molecules inside tiny, porous materials like rocks, soils, or even cell membranes.
This can help us learn more about how these materials work, how liquids move through them, and even how different kinds of molecules interact with each other.
Does that make sense?