. "The Bohr\u2013Van Leeuwen theorem states that when statistical mechanics and classical mechanics are applied consistently, the of the magnetization is always zero. This makes magnetism in solids solely a quantum mechanical effect and means that classical physics cannot account for paramagnetism, diamagnetism and ferromagnetism. Inability of classical physics to explain triboelectricity also stems from the Bohr\u2013Van Leeuwen theorem."@en . . . . . . . . . . . . "Bohr\u2013Van Leeuwen theorem"@en . . . . . . . "11051"^^ . . . . . . . . . "The Bohr\u2013Van Leeuwen theorem states that when statistical mechanics and classical mechanics are applied consistently, the of the magnetization is always zero. This makes magnetism in solids solely a quantum mechanical effect and means that classical physics cannot account for paramagnetism, diamagnetism and ferromagnetism. Inability of classical physics to explain triboelectricity also stems from the Bohr\u2013Van Leeuwen theorem."@en . . . . . . . . . "19968510"^^ . . . . . . . . . . . . . . . . . . . "1070852983"^^ . .