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.

Input: Consider Input: This man gives his name, along with that of Francis Sears, to a process in ultrasonic imaging for which the acoustic wavefronts act as optical gratings to diffract the light on either side of the central spot. The distance over which charge carriers in plasmas exclude electric fields via his namesake shielding is also known as his namesake length. With an assistant later famous in his own right for his rule for determining whether ring molecules would show aromatic properties, he developed a mathematical expression to explain characteristics of electrolytic solutions, the famous equation named for him and Erich Hckel. FTP name this man who also gives his name to the SI unit defined as about 3.3 x 10-30 Coulomb meters, which measures the molecular dipole moment.

Output: Science


Input: Consider Input: In one of this author's short stories, the title character is killed after taking a boy hostage, after which his body is dumped in an unused mine and stinks up the village. In addition to The Catch, this author has recently completed the trilogy The Flaming Green Tree, a work he claims will be his last. Other works by him include a four-volume collection that contains a story about the boy Eeyore, Teach Us to Outgrow Our Madness, and a novel about children who are taken to a remote village after a plague breaks out. The birth of Bird's child with a brain hernia parallels this man's own experiences with his retarded son and is central to his A Personal Matter. FTP, identify this author of Nip the Bud, Shoot the Kids, who also wrote about the brothers Mitsu and Takashi in The Silent Cry.

Output: Literature


Input: Consider Input: It can occur in crystals lacking a center of symmetry via the Pockels effect. Nicol and Wollaston prisms utilize this property through the application of (*) calcite. When an electric field is applied to an anisotropic transparent substance, it occurs through the Kerr effect and it arises in materials possessing two different indices of refraction. For 10 points, identify this optical phenomenon that divides unpolarized light into an ordinary and an extraordinary ray traveling in different directions.


Output: Science