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.

Preparation of certain polymers for this technique typically involves dissolving in a non-hygroscopic solvent before applying the sample to a cell. Preparing solids may involve pushing the sample through a die press to generate a translucent material for this technique or combining the sample with a mulling agent such as Nujol prior to application on potassium bromide salt plates. This technique produces a spectrum with a fingerprint region and characteristic absorbance leads to stretching and bending of bonds in molecules in this technique. It produces a broad peak for alcohols around 3300 inverse centimeters. For 10 points, name this spectroscopic technique using wavelength slightly longer than that of visible light.
Science