You have just seen me untie the knot, dissociate the electrons, or what you will.
Steel and electrons and wires and robotic brains were inflexible.
But you remember that when we want to get these electrons to do work we must make them flow.
But when you rubbed them together, you rubbed some of the electrons off the wool on to the comb.
The electrons could not get off the hair easily, so they stayed there.
Metal and electrons reason well, but not in a human fashion.
Is there a nucleus, then, round which the electrons revolve?
Electrons are to be found everywhere, forming part of every atom.
In other words, we believe an electric current to be a flow of electrons.
We have seen that an electric current is really a flow of electrons.