Atomic motor uses single atom of Ruthenium as ball bearing

Sometimes, science does things just to see if it is possible. This seems to be one of those times. While I really wanted to have my long promised flying car by now, this is pretty cool too. Controlled clockwise and anticlockwise rotational switching of a molecular motor U. G. E. Perera, F. Ample, H. Kersell, Y.…