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:
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

question:
One work by this composer is considered one of the most technically demanding of its kind and has a notable second movement with quick glissandi, but ends in its fourth with an unusual use of the rare Locrian mode. This mans other compositions include an E-minor work dedicated to Rostropovich, and a suite that contains a movement entitled The Glorious Departure of Lolli and the Cortge of the Sun. Besides his Symphony-Concerto and Scythian Suite, he also composed a piece commissioned by Paul Wittgenstein, as well as a ballet containing the movement Dance of the Knights, and a suite with a bell-filled Troika movement. He imitated Haydn in his Classical Symphony. For 10 points, name this Russian composer of The Love for Three Oranges and the Lieutenant Kije suite.
answer:
Fine Arts

question:
The ancient capital of this country is bisected by the Perfume River, which has its source in the Annamite Range. The Lake of the Returned Sword, or Hoan Kiem, is found in the capital of this country. The Can Tho Bridge crosses the Bassac River in this country, which is home to the Tay and Kinh ethnic groups. The world's largest cave, the Son Doong, is found in this country, which also contains the UNESCO Word Heritage sites of Ha Long Bay and the city of Hue. The Red River flows through the capital of this country, whose far south contains the Mekong Delta. For 10 points, name this Southeast Asian country that contains Ho Chi Minh City and Hanoi.
answer:
Social Science