if physically speaking particles never touch so how can we feel different textures?

Question

If nothing in an atomic sense and literal sense touch how can we feel the difference between textures for example a tree and paper one is rough and another is smooth hos de we differentiate???

In: Biology

Answer 1

Say if you put a thin cover over a pen and rub it. You can still tell the difference right.. Or how you can tell difference when an object is in your pocket like keys or something. Its a very thin space outlining it.