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.

[EX Q]: 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.
[EX A]: Science

[EX Q]: In one myth this deity laid the egg that would become the world and his association with the equinoxes led to his epithet as the god of balance. His center of worship was at Khmunu and one of his wives, Seshat, was the inventor of writing. He carried the eye of Ra in his role as messenger, but is better known for weighing the hearts of the deceased in his role as judge of the dead. Often depicted as a baboon, he hid Horus from Set after the latter killed Osiris and returned Tefnut to Ra's fold. FTP name this Egyptian god of scribes, wisdom, and the moon, most commonly depicted with the head of an ibis.
[EX A]: Social Science

[EX Q]: This man came dangerously close to losing most of his money investing in an invention by the  "Austrian Edison", Jan Szczepanik. Although his namesake Memory Builder game failed to find an audience, he found mild success with a patented Self-Pasting Scrap Book. He lost big investing in a new method for engraving called Kaolatype and in James W. Paige's imperfect (*) typesetting machine. This man's publishing house produced an unpopular biography of Pope Leo XIII which erased much of the profit it earned from publishing the memoirs of his close friend, Ulysses S. Grant. This author of "King Leopold's Soliloquy" served as vice-president of the American Anti-Imperialist League. For 10  points, name this author of non-fiction work like Following the Equator and A Tramp Abroad.
[EX A]:
History