Task: Text Categorization
Input (English): 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.
Output (English): Science