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:
This philosopher advocated the adoption of a federal system in Considerations on the Government of Poland. He contrasted the natural and physical types of the title concept in his Discourse on Inequality. He also wrote an epistolary novel subtitled The New Heloise, and a treatise dealing with the education of the titular boy, Emile. His most famous work discusses a society controlled by the general will of its people and asserts that man is born free, but is everywhere in chains. For 10 points, name this French philosopher who wrote The Social Contract.
answer:
Social Science


question:
This entity shares its name with one controlled by the astronomer and investigator of mesmerism, Jean Sylvain Bailly. It saw the execution of General Lecomte, and Marshall MacMahon led a campaign against it that culminated with a mass execution at the Wall of the Federalists. Its aftermath saw a mass deportation to New Caledonia, and it was opposed by Adolphe Thiers. Louis-Auguste Blanqui was its nominal leader despite being imprisoned at the time, and it ended in the "Bloody Week" amidst fierce barricade fighting. Growing out of the Franco-Prussian War, for 10 points, name this socialist government that held power for two months in 1871 in the French capital.
answer:
History


question:
Gravitational redshift was measured by Pound, Rebka, and Snider in Harvard's Jefferson Tower using this technique to detect a frequency shift of order one part in ten to the 14th. It can be used for precise studies of the Zeeman effect in nuclei. Iron 57 and tin 119 are two of the isotopes used in this type of spectroscopy due to narrow linewidths in their transitions. Before this technique, the large size of Doppler shifts relative to transition widths made nuclear spectroscopy problematic. It was discovered by its namesake when he was a graduate student at the Munich University of Technology. FTP, what is this effect in which a crystal lattice reduces recoil energy
answer:

Science