instruction:
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.
question:
Mobility is related to the zeta potential, dielectric constant, and this quantity in the Smoluchowski equation. For gases, the variation of this quantity with temperature is given by Sutherland's formula. Measured with a Zahn cup, this quantity is squared in the Grashof number, and the ratio of this quantity to thermal diffusivity is the Prandtl number. When this quantity is zero, the Euler equations correspond to the NavierStokes equations. Reynolds number is the ratio of inertial forces to this quantity, which is constant for Newtonian fluids. Measured in poise [PWAHZ], this quantity is zero for superfluids. For 10 points, name this internal friction of a fluid that tends to resist its flow.
answer:
Science

question:
When these devices exploit their voltage-dependent variable capacitance they are known as varactors. Barring the creation of local hot spots, a non-destructive avalanche current is produced by electron-hole pair propagation when the electric field within the (*) depletion region of these devices reaches a critical value. Majority carriers exist in an energy state greater than the Fermi energy in the Schottky barrier variety and those that operate in reverse breakdown are named after Zener. For 10 pointsname these devices that allow current to pass in only one direction.
answer:
Science

question:
The title group of one of this man's stories represents all nations and is led by Don Alejandro, who eventually orders a huge stack of books to be burnt. In another of his stories, a man plans to engage in a knife fight in the title region, which may be a dream as he had earlier been dying of septicemia. This author of "The Congress" and "The South" wrote a story in which a character mentions a riddle whose answer is chess and whose central character is pursued by Captain Madden. This man wrote about Carlos Argentino Daneri, who sees the entire universe through the title entity, as well as about the sinologist Stephen Albert, who is killed by Yu Tsun, allowing the Germans to bomb an artillery park. For 10 points, name this author of "The Aleph" and "The Garden of Forking Paths."
answer:
Literature