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 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.
answer:
Science

question:
A member of the Alcmaeonid family he was born under a family curse incited by his great-grandfather. Peisistratus exiled him and his family, but he returned twenty years later, and during the reign of Hippias convinced the Delphic oracle to tell Sparta to help overthrow the tyranny. Gaining power in 510, he broke the traditional aristocracy, instituting a system of the ten tribes of Attica.. FTP, identify this Athenian tyrant who created the council of 500 in order to favor equal rights for all citizens.
answer:
History

question:
The optical or refractive type of this quantity is measured in diopters and measures the ability of a device to focus light. A non-standard unit for this quantity is the ton of refrigeration, and in systems with flow, it is equal to the product of flow rate and pressure. Radiative intensity or energy flux is defined as luminosity or this quantity per unit area. In rotational systems, it can be calculated as the dot product of torque and angular velocity, while in kinematics it is simply given by force times velocity. For 10 points, name this physical quantity equal to the work done per unit time, often measured in Watts.
answer:
Science