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.

Instead of employing the Debye-Hull-Scherrer powder method, its namesakes relied on an array of atomic planes. Its namesakes built a vacuum apparatus and employed a hot filament, an accelerating electrode, and an arc-mounted Faraday box. A leak in the vacuum led its namesakes to heat the target, resulting in crystallized nickel, which gave startling results. A plot of collector current against beam energy was explained by constructive interference, and the results in general could be derived by combining Bragg's equation with the de Broglie wavelength for electrons. FTP name this experiment named for two physicists, which proved that electrons diffract.
Science

This dynasty sent Zhang Qian on exploring missions, and it was confronted by the Rebellion of the Seven States. The Records of A Grand Historian were written by Sima Qian during this dynasty, and after the Battle of Jushi, Emperor Wu forced the Xiongnu to become its tributaries. An interregnum by Wang Mang's Xin dynasty divides this dynasty into [*] "Eastern" and "Western" parts. It was founded by Liu Bang after the Qin dynasty and was followed by the Three Kingdoms period. Challenged by the palace eunuchs and the Daoist Yellow Turban Rebellion, for 10 points, name the Chinese dynasty after which the primary ethnic group of China is named.
History

While studying in Germany, the protagonist of this novel encounters Weeks, whose knowledge of Greek literature shames Heyward. The protagonist attempts to befriend Miss Price while studying art in France, and loses his virginity to Miss Wilkinson. The protagonist befriends Thorpe Athelney after a long period of poverty partially caused by his destructive relationship with the waitress Mildred, and eventually becomes a doctor. For 10 points, name this novel about the club-footed Philip Carey, written by William Somerset Maugham.
Literature