11. However, the classical theory for Langevin diamagnetism gives the same prediction as the quantum theory. 12. The Langevin theory of diamagnetism applies to materials containing atoms with closed shells ( see dielectrics ). 13. He adopted the term " diamagnetism " after it was suggested to him by William Whewell. 14. However, since diamagnetism is such a weak property, its effects are not observable in everyday life. 15. This can be done with all components at room temperature, making a visually effective demonstration of diamagnetism . 16. The Bohr van Leeuwen theorem proves that there cannot be any diamagnetism or paramagnetism in a purely classical system. 17. I guess this question is directed towards people who are familar with how things can be levitated with diamagnetism . 18. Diamagnetism was first discovered when Sebald Justinus Brugmans observed in 1778 that bismuth and antimony were repelled by magnetic fields.19. The diamagnetism of this complex arises from anti-ferromagnetic coupling between the unpaired electrons of the two ligand radicals. 20. Consequently, diamagnetism is a form of magnetism that a substance exhibits only in the presence of an externally applied magnetic field.