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.
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Question: The Fraunhofer lines of the Sun's electromagnetic spectrum contain a D-line, sometimes known as a ""doublet,"" produced by transitions in this element's family but traditionally named after this element. This metal is currently made using the Downs Cell. When it is used as a coolant in nuclear reactors, the radioactive 24 isotope of this element is formed. It produces a bright (*) yellow flame when heated. This is the second-lightest alkali metal after lithium. For 10 points, identify this metal whose chloride is table salt.

Answer: Science


Question: His reign saw both the publication of the legal treatise Quadripartitus and the earliest surviving European kingdom-wide financial survey, and the exchequer originated at Winchester at the behest of his minister Roger of Salisbury. He fined William de Mandeville for allowing the escape of Ranulf Flambard from the Tower of London, and he had earlier ceded custody of Cotenin to his brother Robert Curthose to avoid war. The wreck of the White Ship resulted in the death of his only legitimate heir, William theling, and his childless marriage to Adeliza of Louvain resulted in his succession by Stephen of Blois. For 10 points, name this man who won the lordship of Normandy in the battle of Tinchebrai, king of England from 1100 to 1135 and the first Norman ruler not named William.

Answer: History


Question: Materials with this property can exhibit a noise arising from self-organized criticality known as the Barkhausen effect. The Ising model was originally formulated to study this phenomenon, in which regions become separated by Bloch walls and materials exhibiting this property are frequently subject to hysteretic effects. The anti variety of this property disappears above the Neel point, while this property itself disappears above the Curie point, where the material transitions to paramagnetism. FTP, identify this form of magnetism resulting from the spontaneous alignment of domains, which is present in metals such as nickel and iron.

Answer:
Science