Rheological weldability

Imagine you have two pieces of clay that you want to stick together. However, you don't want to use glue or any other adhesive, you just want the clay pieces to stick together because of some magic called "rheological weldability."

Now, rheological weldability is the ability of two materials to join together due to the way that their particles behave when they are pushed together. So, when you push the two pieces of clay together, their tiny particles start to mix and blend together, sort of like how two different colors of paint blend together when you mix them on a canvas.

This blending happens because of the way that the particles of the two pieces of clay interact with each other. They push and pull each other, creating a sort of "sticking" effect that makes the two pieces of clay hold together. So, even though you didn't use any glue or adhesive, you've still managed to stick two pieces of clay together thanks to their super cool rheological weldability!