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.

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.
History

In topological insulators, one version of this effect gives rise to a defect-resistant current induced by spin-orbit coupling. In graphene, this effect is shifted by one half, giving rise to an anomalous minimum of the relevant quantity, which can allow for ballistic transport. A more complex version of it was discovered in gallium arsenide and can be explained by Laughlin quasiparticles; this is referred to as the fractional version. This effect can be understood in terms of partial filling of Landau levels and has characteristic "plateaus", and it yields numbers called filling factors. Discovered by Klaus von Klitzing when studying a two-dimensional electron gas, for 10 points, identify this effect in which conductivity in a strong magnetic field is quantized.
Science

This quantity is measured along with volume on a Gran plot, and one device for measuring this quantity was developed by Arnold Orville Beckman. An analogue of this value is used to determine potential in an electrochemical cell in the Nernst equation, and a related value to this quantity, alkalinity, is derived from it and measures the concentration of hydroxide ions in a solution. For a high value of this quantity, phenolphthalein will turn pink, indicating the presence of a base, and it is calculated using the negative log of the concentration of hydrogen ions. For 10 points, name this chemical quantity that runs from values of 0 to 14, used to indicate acidity.

Science

