At what point does matter stop having the ability to function as both a particle and a wave? In the early 1800s Thomas young created a double slit experiment, where light passed threw two slits and created an interference pattern. This meant light was both a particle and a wave. In 1961 Claus Jonsson repeated the experiment with electrons. First he shot electrons threw one slit getting a pattern of .. one slit. Then he shot them threw two slits expecting to get two slits but instead he got an interference pattern. This means matter itself has the ability to act as both a particle and a wave. He wondered how this was possible and set up an electron detector to see how this was happening and repeated the experiment. This time he got two slits. Matter acted as a particle again just by being observed. Later this experiment was repeated with the same results with bucky balls made of 60 carbon atoms and then even later completed with a 240 atom object. Most recent and the most interesting Andrew Cleland of the university of California witnessed a mechanical resonator on a macroscopic scale (big enough to be seen with the naked eye) in a state of superposition. Could this thin disc made of aluminium nitrate, consisting of around a trillion atoms, be a link between our classical and the quantum world of the weird?