But I don't think I'll see it a mile away. Now, suppose I hold this really tiny marble, the solid sphere, from a mile away you definitely won't see this one. So in other words, the smaller you go, the less you see its position and the less you see its velocity. If I walk 5 miles away and I hold either of these balls, you won't see any ball and you won't be able to tell where the ball is and with what speed or with what velocity it's moving. The point is, and what this uncertainty principles show, is that as you shrink down to the atom and then to the sub atom, to the electron, you no longer are dealing with solid spheres. They're no longer solid spheres, and they act more as waves.