TASK DEFINITION: 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.
PROBLEM: Lin and Shu proposed the density-wave theory to explain how the structure of these entities is sustained. The most accurate method for measuring the distances to distant ones uses a relation between their maximum rotational velocity and absolute magnitude, which is known as the Tully-Fisher method. They are generally blue because of their high content of old stars, and one type of them features arms that emanate from each end of a namesake structure. They have discs like the lenticular type, but contain much more angular momentum than the elliptical type. FTP name these galaxies, some of which are barred, including the Milky Way.

SOLUTION: Science

PROBLEM: The enzyme LCAT catalyzes the formation of an ester from this compound. Intermediates in the synthesis of this compound include squalene [SKWAY-leen] and mevalonate [muh-VAL-uh-nate], the latter of which is produced by HMG-CoA reductase. Vitamin D is formed from the 7-dehydro form of this compound, which reduces membrane fluidity. This compound, which is transported to the liver by high-density lipoprotein, is linked to heart disease. For 10 points, name this compound whose amount in the blood is lowered by statins such as Crestor and Lipitor.

SOLUTION: Science

PROBLEM: This man, along with his cousin Timothy Folger, was the first to chart the Gulf Stream, which he gave its name. Along with John Hadley, this scientist conducted experiments in Cambridge that demonstrated the principle of evaporative (+) cooling. This scientist was the first to show the conservation of charge, and it is because of him that we use the terms ""positive"" and ""negative"" to describe charge. Georg Richmann was killed attempting to repeat an experiment in which this man attempted to show that vitreous and resinous (*) electricity were the same. For 10 points, name this inventor of the lightning rod and conductor of a kite experiment.

SOLUTION:
History