Q: 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.
The Knox-Thompson method computes the Fourier Transform of images associated with these objects. The simplest type of these is utilized in hyperfine structure analysis and utilizes a single component known as a Lummer-Gehrcke plate. In some varieties, the Martin-Puplett equation is employed in the calculation of input powers associated with them. A more common variety utilizes a gyroscope and laser, and uses the Sagnac Effect to determine angular velocity. An external modulator is typically used to vary the position of waveguides in the Mach-Zehnder type. FTP, name this common device useful for measuring phase altering media by producing its namesake figures, the most famous of which was used to disprove the existence of the ether by Michelson and Morley.
A:
Science