Teacher:In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Teacher: Now, understand the problem? Solve this instance: This universal property of all spinless boson systems can be derived exactly for all charged scalar fields at any temperature. This property is most easily observed in symmetric electronic structures such as ionic crystals. Materials with this property do not fit into the assumptions of Earnshaws theorem, as they have negative susceptibility. Bismuth has the highest elemental value for this property, and superconductors demonstrate the perfect variety of this property when they expel magnetic fields. For ten points, identify this type of magnetism employed in a namesake type of levitation and distinguished from paramagnetism.
Student:
Science