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.

Q: A version of spectroscopy that is free of one form of this effect uses a standing wave to give radiation to a moving atom and is named for its two-photon transition. Due to this effect, atoms observe laser resonance leading to the phenomenon of optical molasses at its namesake cooling limit. Mossbauer spectroscopy uses this effect to modulate the energy of the incident gamma rays. An experiment that used a canal ray tube and a mirror to view light emissions was used to detect the transverse form of this effect, while its relativistic form involves changes equal to the square root of one plus beta over one minus beta. For 10 points, name this shift in the wavelength from a moving source that can be heard by an observer.

A: Science
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Q: Published under the pseudonym Johaness de Silentio, this work is believed by analysts to have two distinct themes. First is the "teleological suspension of the ethical," an example of which is God's order that Abraham kill Isaac. From there the author uses the Abraham/Isaac story to come to terms with the end of his love affair with Regine Olsen. The overall story, then, concerns a contrast between the "tragic hero" and the "knight of faith. "  FTP, name this 1843 philosophical work by Soren Kierkegaard. 				

A: Social Science
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Q: This government legalized a system of alternate attendance among feudal lords, where they were required to spend one year within their domains and one in the capital. One challenge to it came from disgruntled ronin lead by Yui Shotetsu, who attempted a coup called the Keian Uprising. Its downfall came during the Bakamatsu, during which popular sentiment called for expelling the barbarians, leading to the Boshin War and resignation of Yoshinobu. It was founded after its namesakes victory over Ishida Mitsunari at Sekigahara, and it also signed of the Treaty of Kanagawa with Matthew Perry. Immediately followed by the Meiji restoration, FTP, name this Shogunate, founded by Ieyasu, that ruled Japan from 1600 to 1868.

A:
History
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