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: 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.

Answer: Science


Question: This painting was parodied in Portrait: Twins, in which Yasumasa Morimura inserted himself into the central role. In its original version, a green curtain is drawn back at the top left corner, and the somewhat surprised woman at the right wears a light pink dress and carries a large floral arrangement. Blue and gold shoes, a gold bracelet, and a black choker are the only clothing worn by the central figure, modeled on prostitute Victorine Meurent. For 10 points, name this reclining nude which shocked the Salon of 1865 and was painted by Edouard Manet.

Answer: Fine Arts


Question: This composer's piano concerto features a solo for the cellos in its middle Intermezzo movement; that concerto in A minor was originally written as a one-movement Phantasie. One of his collections of piano works includes the often-omitted movement Sphinxes and two movements that depict contrasting aspects of the composer's personality, (*) Florestan and Eusebius. This composer of Carnaval wrote a symphony named for poems by Adolph Boettger. Another of his symphonies features three trombones in the fourth movement depicting a ceremony in the Cologne Cathedral near the namesake river. For 10 points, name this composer of the Spring and Rhenish symphonies, husband of Clara.

Answer:
Fine Arts