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.
Kennedy and Illingworth attempted to carry out this experiment with a half-wave step. One of its conductors later worked with Dayton Miller to resolve the problem that this experiment raised. The setup of this experiment was constructed atop a slab of marble floating in a pool of mercury. One of this experiment's conductors created a namesake interferometer to split a single light source into two beams of light. For 10 points, name this experiment, the null result of which discredited the existence of luminiferous [loo-mih-NIH-fer-us] ether.
A:
Science