Let's imagine a spoke on a spinning wheel like that of a cart wheel. Now we know and can see that the outermost particles of the spoke have a higher speed than the inner particles. As we get closer and closer to the centre, we know that the speed gets slower and slower. Here's my question. Is there a particle in its dead centre which does not spin? In my mind I am not able to think of even an atom in the dead centre that will not rotate. But that is not possible for this reason: Since speed diminishes as we get closer and closer to the dead centre, there has to be a point when the speed gets to be zero. Is that possible?