Back when quantum mechanics was born, there were indeed many physicists who believed that quantum mechanics would prove to work only on the atomic scale. Well, no longer! The simple double-slit interference experiment (Figure 7.7), hailed by Feynman as the mother of all quantum effects, has been successfully repeated for objects larger than individual elementary particles: atoms, small molecules and even the soccer ball–shaped carbon-60 “Bucky Ball” molecule.
larger object obey the quantum mechanics as well?
